8 Best Air Filters under $100 in 2026

Contents
  1. The Top 8
  2. Top 8 Air Filters Reviewed in Detail
  3. 1. Best Overall
  4. 2. Most Versatile
  5. 3. Best Budget
  6. 4. Best Lightweight
  7. 5. Best Value
  8. 6. Best for Daily Use
  9. 7. Runner-Up
  10. 8. Best for Beginners
  11. Air Filters Compared Side by Side
  12. How We Reviewed
  13. How to Choose Air Filters
  14. What to look for
  15. Frequently asked questions

Finding the best air filter under 100 can be tough. The Amazon Basics 16x20x1 Air Filter is our top pick due to its MERV 8 rating, which captures dust and pollen effectively. The Amazon Basics 20x25x1 Air Filter is a great value pick, but it has a lower MERV 8 rating. You will sacrifice some air quality for a lower price with this option.

Many buyers face the choice between higher MERV ratings for better filtration or saving money with lower-rated filters. This article will guide you through more options and help you decide what fits best for your needs.

Paid links. We earn a commission from qualifying purchases at no extra cost to you. Prices are pulled live from Amazon and change often. How this works

The Top 8

1
Core Mini Replacement Filter for LEVOIT Core Mini,Core Mini-P Air Purifier
Core Mini Replacement Filter for LEVOIT Core Mini,Core Mini-P Air Purifier
Amazon.com
2
Amazon Basics 12x12x1 Air Filter 6-Pack, MERV 11 AC Furnace Filters, Dust, Pet, Allergen Control , Removes Pollen and Lint (Actual Size: 11.75" x 11.75" x 0.75")
Amazon Basics 12x12x1 Air Filter 6-Pack, MERV 11 AC Furnace Filters, Dust, Pet, Allergen Control , Removes Pollen and Lint (Actual Size: 11.75" x 11.75" x…
Amazon.com
3
Amazon Basics 12x12x1 Air Filter 6-Pack, MERV 8 AC Furnace, Dust, Pet & Allergen Control , Electrostatic (Actual Size: 11.75" x 11.75" x 0.75")
Amazon Basics 12x12x1 Air Filter 6-Pack, MERV 8 AC Furnace, Dust, Pet & Allergen Control , Electrostatic (Actual Size: 11.75" x 11.75" x 0.75")
Amazon.com
4
Amazon Basics 16x20x1 Air Filter 6-Pack, MERV 8 AC Furnace Filters, Allergen Control , Removes Dust, Lint and Pollen, Electrostatic (Actual Size: 15.75" x 19.75" x 0.75")
Amazon Basics 16x20x1 Air Filter 6-Pack, MERV 8 AC Furnace Filters, Allergen Control , Removes Dust, Lint and Pollen, Electrostatic (Actual Size: 15.75" x…
Amazon.com
5
Amazon Basics MERV 5 AC Furnace Air Filter, 16x25x1 inches, 6-Pack (Actual size: 15.75" x 24.75" x 0.75")
Amazon Basics MERV 5 AC Furnace Air Filter, 16x25x1 inches, 6-Pack (Actual size: 15.75" x 24.75" x 0.75")
Amazon.com
6
Amazon Basics 20x25x1 Air Filter 6-Pack, MERV 8 AC Furnace Filters, Removes Dust, Electrostatic, Allergen Control (Actual Size: 19.75" x 24.75" x 0.75")
Amazon Basics 20x25x1 Air Filter 6-Pack, MERV 8 AC Furnace Filters, Removes Dust, Electrostatic, Allergen Control (Actual Size: 19.75" x 24.75" x 0.75")
Amazon.com
7
VOOPNU Air Purifiers for Home, High Efficiency Filter Up to 1076 Ft², White
VOOPNU Air Purifiers for Home, High Efficiency Filter Up to 1076 Ft², White
Amazon.com
8
Amazon Basics 20x20x1 Air Filter 6-Pack, MERV 11 AC Furnace Filters, Dust, Pet, Allergen Control , Electrostatic (Actual Size: 19.75 x 19.75 x .75)
Amazon Basics 20x20x1 Air Filter 6-Pack, MERV 11 AC Furnace Filters, Dust, Pet, Allergen Control , Electrostatic (Actual Size: 19.75 x 19.75 x .75)
Amazon.com

These are the strongest picks that come in under $100, cheapest first.

Top 8 Air Filters Reviewed in Detail

Below, we review our top selections for budget-friendly air filters under $100. Each product is suited for different needs.

1. Best Overall

Core Mini Replacement Filter for LEVOIT Core Mini,Core Mini-P Air Purifier

$16.98 $18.88
in stock
Limited time deal
Amazon.com
  • 【Fully Compatible with Core Mini/Core Mini-P】The premium Core Mini replacement filter is specially designed for LEVOIT Core Mini-P Air Purifier. Compared to Part #Core Mini-RF. (*NOTE: This core mini replacement filter is ONLY compatible with LEVOIT Core Mini, Core Mini-P Air Purifier, please check your air purifier model before purchasing.)
  • 【3-in-1 Filtration System】Our Core Mini filter replacement is specifically designed in 3-in-1 Filtration System. The Pre-Filter, Personal Filter, and Activated Carbon Filter work together to airborne particles and unwanted odors in your living space for improved air quality.
  • 【Higher Efficiency & Longer Life】Cabiclean core mini-rf replacement filter is made of eco-friendly non-woven fabric and activated carbon, both adopt advanced lower energy consumption and lower density structure technology verified by the manufacturer, higher efficiency and less pressure to ensure maximum filtration. And the upgraded electrostatic electret filter technology which used in non-woven fabric ensures energy saving and a longer service life.
  • 【Valuable Packs】Package includes 2 x 100% Brand New Core Mini Replacement Filter and 10 x Core Mini Aroma Pads. Cabiclean Core Mini-RF filter replacement contains all the required parts to complete the standard installation of your Core mini air purifier. It is cost-effective and the right choice for you.
  • 【Buy with Confidence】Cabiclean has been committed to providing all customers with high-quality and cost-effective air purifier filters, and help customers build a better living environment. We value each customer, and our after-sales team will provide each customer with satisfactory service. Filter made of FSC-Certified paper
Updated: 8 hours ago

The Amazon Basics 16x20x1 Air Filter is an excellent choice for anyone looking for the best air filter under 100. It has a MERV 8 rating, which efficiently captures household irritants such as dust and pollen. This filter is compatible with standard HVAC systems, as its actual size is 15.75 x 19.75 x 0.75 inches. Its design and cost make it an attractive option for families wanting to improve their indoor air quality without spending too much.

Compared to other picks, the Amazon Basics filter offers a balanced combination of performance and affordability. It captures a significant amount of allergens without overwhelming your HVAC system. Filters like the MERV 11 versions provide better filtration but may also cost more. The tradeoff is between optimal air quality and budget considerations.

One limitation is that it may not capture the smallest particles compared to higher MERV filters. This filter works best in homes with moderate dust and allergen levels. If your environment has extreme allergies, you may want to consider a higher-rated option.

Pros

  • MERV 8 rating captures dust, lint, and pollen effectively.
  • Compatible with standard HVAC systems and easy to install.
  • Cost-effective option for improving indoor air quality.

Cons

  • Does not capture the smallest particles compared to higher MERV filters.
  • May need more frequent replacement in high dust environments.

Best for: Families wanting to improve indoor air quality. Not ideal for: Homes with severe allergies requiring top-tier filtration.

This filter is a reliable choice for better home air quality on a budget.

2. Most Versatile

Amazon Basics 12x12x1 Air Filter 6-Pack, MERV 11 AC Furnace Filters, Dust, Pet, Allergen Control , Removes Pollen and Lint (Actual Size: 11.75" x 11.75" x…

$21.07 $24.79
PRIMEPRIME
in stock
Early Prime Big Deal
Amazon.com
  • SIZE & COMPATIBILITY: Nominal 12x12x1 (Actual 11.75 x 11.75 x 0.75 in). Select nominal size based on your current filter’s frame or measurements. Fits standard furnaces, ACs & HVAC return grilles
  • ENHANCED AIR QUALITY: Merv 11 rating air filters effectively captures household irritants like lint, dust, and pollen, to help provide cleaner and healthier air in your home
  • IMPROVED FURNACE EFFICIENCY: Designed to promote furnace efficiency and optimization, this furnace air filter traps particles that can cause system wear and tear
  • DURABLE CONSTRUCTION & EASY INSTALL: Made with a beverage board frame and wire mesh support, this home air filter provides reliable, long-lasting performance. Insert with the airflow arrow pointing toward the furnace/blower (away from the return grille) for a snug fit
  • ELECTROSTATICALLY CHARGED MATERIAL: The air filters are made with synthetic material that is electrostatically charged to attract and capture allergens as small as 3 microns
  • CONVENIENT 6-PACK: This convenient 6-pack of air conditioner filters provides you with replacements on hand for up to 12 months with regular changes every 60 to 90 days
Updated: 8 hours ago

The Levoit Air Purifier is a versatile option for those needing to handle pet hair and allergens. This model includes an AHAM Verified seal for performance, meaning it meets strict standards. It is compact and ideal for bedrooms, making it perfect for users with pets or allergies. The design allows it to fit smooth into various home styles without taking up much space.

When compared to the other air filters on this list, the Levoit Air Purifier stands out due to its ability to clean the air effectively. Its AHAM verification assures users of its efficiency. However, unlike traditional filters that require replacement, this purifier needs a filter change every few months, which can add to the cost over time.

The main limitation is that it may not be as suitable for larger spaces. For users with extensive areas needing coverage, a larger unit would be more effective. It performs best in smaller rooms and may not work efficiently in open spaces.

Pros

  • AHAM Verified for air cleaning performance and energy efficiency.
  • Compact and quiet design, suitable for bedrooms.
  • Effectively removes pet hair and common allergens.

Cons

  • Not ideal for larger spaces beyond its recommended coverage.
  • Requires filter replacements, which adds to long-term costs.

Best for: Pet owners and allergy sufferers in need of a quiet air purifier. Not ideal for: Large areas that require extensive air filtration.

This air purifier is a solid option for smaller spaces needing effective allergen control.

3. Best Budget

Amazon Basics 12x12x1 Air Filter 6-Pack, MERV 8 AC Furnace, Dust, Pet & Allergen Control , Electrostatic (Actual Size: 11.75" x 11.75" x 0.75")

$22.87 $26.92
PRIMEPRIME
in stock
Early Prime Big Deal
Amazon.com
  • SIZE & COMPATIBILITY: Nominal 12x12x1 (Actual 11.75 x 11.75 x 0.75 in). Select nominal size based on your current filter’s frame or measurements. Fits standard furnaces, ACs & HVAC return grilles
  • ENHANCED AIR QUALITY: Merv 8 rating air filters effectively captures household irritants like lint, dust, and pollen, to help provide cleaner and healthier air in your home
  • IMPROVED FURNACE EFFICIENCY: Designed to promote furnace efficiency and optimization, this furnace air filter traps particles that can cause system wear and tear
  • DURABLE CONSTRUCTION & EASY INSTALL: Made with a beverage board frame and wire mesh support, this home air filter provides reliable, long-lasting performance. Insert with the airflow arrow pointing toward the furnace/blower (away from the return grille) for a snug fit
  • ELECTROSTATICALLY CHARGED MATERIAL: The air filters are made with synthetic material that is electrostatically charged to attract and capture allergens as small as 3 microns
  • CONVENIENT 6-PACK: This convenient 6-pack of air conditioner filters provides you with replacements on hand for up to 12 months with regular changes every 60 to 90 days
Updated: 8 hours ago

The Amazon Basics 20x25x1 Air Filter is a solid choice for those looking for a reliable air filter without breaking the bank. With a MERV 8 rating, it captures dust and pollen effectively, providing decent air quality. Its actual size of 19.75 x 24.75 x 0.75 inches makes it compatible with various HVAC systems. This model is particularly useful for larger rooms that require a bigger filter.

In comparison to other options on this list, it shares the same MERV rating as the top pick but offers a different size. This makes it a versatile alternative if the size fits your system better. However, it may not capture smaller particles as efficiently as higher-rated filters.

One drawback is that it might require more frequent replacements in homes with high pollen counts. Users may find themselves changing it more often than with higher MERV filters. Overall, it’s a good choice for those needing a larger filter without a significant increase in cost.

Pros

  • MERV 8 rating for effective dust and pollen capture.
  • Larger size option for bigger rooms.
  • Easy to install in standard HVAC systems.

Cons

  • Does not capture smaller particles as well as higher-rated filters.
  • May need more frequent replacement in high pollen areas.

Best for: Larger rooms needing decent air filtration. Not ideal for: Spaces with severe allergies requiring high-efficiency filters.

This filter is a practical solution for those needing a larger size at an affordable price.

4. Best Lightweight

Amazon Basics 16x20x1 Air Filter 6-Pack, MERV 8 AC Furnace Filters, Allergen Control , Removes Dust, Lint and Pollen, Electrostatic (Actual Size: 15.75" x…

$23.66 $27.85
PRIMEPRIME
in stock
Early Prime Big Deal
Amazon.com
  • SIZE & COMPATIBILITY: Nominal 16x20x1 (Actual 15.75 x 19.75 x 0.75 in). Select nominal size based on your current filter’s frame or measurements. Fits standard furnaces, ACs & HVAC return grilles
  • ENHANCED AIR QUALITY: Merv 8 rating air filters effectively captures household irritants like lint, dust, and pollen, to help provide cleaner and healthier air in your home
  • IMPROVED FURNACE EFFICIENCY: Designed to promote furnace efficiency and optimization, this furnace air filter traps particles that can cause system wear and tear
  • DURABLE CONSTRUCTION & EASY INSTALL: Made with a beverage board frame and wire mesh support, this home air filter provides reliable, long-lasting performance. Insert with the airflow arrow pointing toward the furnace/blower (away from the return grille) for a snug fit
  • ELECTROSTATICALLY CHARGED MATERIAL: The air filters are made with synthetic material that is electrostatically charged to attract and capture allergens as small as 3 microns
  • CONVENIENT 6-PACK: This convenient 6-pack of air conditioner filters provides you with replacements on hand for up to 12 months with regular changes every 60 to 90 days
Updated: 8 hours ago

The Amazon Basics 20x20x1 Air Filter shines as a strong contender for anyone seeking allergen control. It features a MERV 11 rating, making it more effective at capturing smaller particles than many lower-rated filters. Its actual size of 19.75 x 19.75 x 0.75 inches allows it to fit standard HVAC setups smooth. This filter is designed for homes looking for improved air quality compared to basic options.

When compared to the other products, the MERV 11 rating makes it different. It can trap more allergens and dust, which is ideal for households with allergy sufferers. However, it does require more frequent changes than MERV 8 filters, which could be a drawback for some users.

A limitation is its potential to restrict airflow in older HVAC systems. Users with older equipment should verify compatibility. While it offers better filtration, it may not be the best choice for every home depending on system capabilities.

Pros

  • MERV 11 rating captures smaller particles effectively.
  • Fits standard HVAC systems with ease.
  • Improves air quality noticeably in allergy-prone homes.

Cons

  • Higher MERV rating may restrict airflow in some systems.
  • Requires more frequent replacement than lower-rated filters.

Best for: Homes with allergy sufferers needing superior filtration. Not ideal for: Older HVAC systems sensitive to airflow restrictions.

This filter is a smart choice for those prioritizing air quality in their home.

5. Best Value

Amazon Basics MERV 5 AC Furnace Air Filter, 16x25x1 inches, 6-Pack (Actual size: 15.75" x 24.75" x 0.75")

$23.85 $28.07
PRIMEPRIME
in stock
Early Prime Big Deal
Amazon.com
  • SIZE & COMPATIBILITY: Nominal 16x25x1 (Actual 15.75 x 24.75 x 0.75 in). Select nominal size based on your current filter’s frame or measurements. Fits standard furnaces, ACs & HVAC return grilles
  • CLEANER AIR: Home air filter (6-pack) promotes cleaner indoor air; helps furnace or air conditioner run efficiently
  • EFFECTIVE: Traps materials pass through the filter; rated MERV 5
  • DURABLE CONSTRUCTION & EASY INSTALL: Made with a beverage board frame and wire mesh support, this home air filter provides reliable, long-lasting performance. Insert with the airflow arrow pointing toward the furnace/blower (away from the return grille) for a snug fit
  • EASY MAINTENANCE: Simply replace the air filter every 60 – 90 days for optimal performance
  • Choose the Right MERV Rating: Furnace Filters are available in MERV ratings from 5 to 13 and higher. Higher MERV ratings capture smaller airborne particles, while lower MERV ratings allow for increased airflow.
Updated: 8 hours ago

The Simply 20x20x1 Air Filter is a strong contender for anyone wanting a balance between effectiveness and cost. With a MERV 8 rating, it captures dust and allergens reasonably well, making it suitable for most households. This filter’s actual size is 19.75 x 19.75 x 0.75 inches, ensuring compatibility with standard HVAC systems. It stands out by being a highly compatible option with various brands.

Compared to other filters, it provides similar filtration performance to the Amazon Basics models but comes with the added recognition of being comparable to well-known brands like 3M Filtrete. However, it does not match the performance of higher-rated filters. Users seeking the best filtration might want to explore options with MERV ratings above 8.

One limitation is that users with pets or severe allergies may find it less effective. It may struggle to capture the smallest particles compared to MERV 11 options. This filter is a good choice for average households looking to enhance air quality without overspending.

Pros

  • MERV 8 rating for decent allergen capture.
  • Compatible with many brands and HVAC systems.
  • Cost-effective solution for average households.

Cons

  • Less effective for capturing smaller particles.
  • Not the best choice for homes with severe allergies.

Best for: Average households seeking basic allergen control. Not ideal for: Homes with significant pet dander or severe allergies.

This filter is a reliable and affordable option for improving air quality.

6. Best for Daily Use

Amazon Basics 20x25x1 Air Filter 6-Pack, MERV 8 AC Furnace Filters, Removes Dust, Electrostatic, Allergen Control (Actual Size: 19.75" x 24.75" x 0.75")

$26.72 $31.45
PRIMEPRIME
in stock
Early Prime Big Deal
Amazon.com
  • SIZE & COMPATIBILITY: Nominal 20x25x1 (Actual 19.75 x 24.75 x 0.75 in). Select nominal size based on your current filter’s frame or measurements. Fits standard furnaces, ACs & HVAC return grilles
  • ENHANCED AIR QUALITY: Merv 8 rating air filters effectively captures household irritants like lint, dust, and pollen, to help provide cleaner and healthier air in your home
  • IMPROVED FURNACE EFFICIENCY: Designed to promote furnace efficiency and optimization, this furnace air filter traps particles that can cause system wear and tear
  • DURABLE CONSTRUCTION & EASY INSTALL: Made with a beverage board frame and wire mesh support, this home air filter provides reliable, long-lasting performance. Insert with the airflow arrow pointing toward the furnace/blower (away from the return grille) for a snug fit
  • ELECTROSTATICALLY CHARGED MATERIAL: The air filters are made with synthetic material that is electrostatically charged to attract and capture allergens as small as 3 microns
  • CONVENIENT 6-PACK: This convenient 6-pack of air conditioner filters provides you with replacements on hand for up to 12 months with regular changes every 60 to 90 days
Updated: 8 hours ago

The VOOPNU Air Purifier is a lightweight and efficient air cleaning option. This purifier stands out for its compact design, covering up to 1,076 square feet while only measuring 6.69 x 6.69 x 9.84 inches. It’s an excellent option for users who need air purification without taking up much space. The intuitive control panel makes it user-friendly, allowing quick adjustments for a comfortable environment.

Compared to traditional filters, this air purifier provides an alternative by actively cleaning the air rather than just filtering it. This feature often appeals to those looking for more advanced technology. However, it does come with the caveat of requiring filter replacements, which adds to maintenance costs.

One limitation is that it may not be suitable for extremely large areas where higher airflow capacities are needed. Users with extensive homes may find this unit less effective. It’s perfect for small to medium-sized spaces where air quality is a concern.

Pros

  • Covers up to 1,076 square feet.
  • Compact and lightweight design for easy placement.
  • User-friendly control panel for effortless operation.

Cons

  • May not be effective in very large spaces.
  • Replacement filters add to ongoing costs.

Best for: Small to medium-sized rooms needing efficient air purification. Not ideal for: Large areas needing extensive air coverage.

This air purifier is an efficient choice for compact spaces requiring cleaner air.

7. Runner-Up

VOOPNU Air Purifiers for Home, High Efficiency Filter Up to 1076 Ft², White

$26.98 $38.99
PRIMEPRIME
in stock
Limited Prime deal
Amazon.com
  • Effortless Operation: Simplified control panel with intuitive design makes it easy to operate. No complicated setup—just one tap, and you’re on your way to cleaner air, saving time and letting you relax with ease
  • Compact Yet Powerful: Covers up to 1,076 ft² while maintaining a compact size of just 6.69 x 6.69 x 9.84 inches. Its small frame makes placement a breeze—whether on your desk or in a corner, it’s ready to work hard wherever you need it (Laboratory Tested: Our air purifier efficiently cleans 250 ft² every 15 minutes, covering up to 1,076 ft² per hour)
  • 360° Airflow & High Efficiency Filtration: The elegantly engineered 360° surround air intake, coupled with the sophisticated a triple-layer filtration system, meticulously captures an astounding 99.97% of airborne pollutants, transforming your living space into a sanctuary of purity and vitality
  • Quiet with Essential Oil Option: Operates as quietly as 22dB, perfect for undisturbed sleep. The built-in essential oil tray lets you add 3–5 drops to infuse your space with soothing scents while enjoying purified air
  • Fully Certified: Backed by DOE, ETL, FCC, CARB, CE, and ROHS certifications, our air purifier meets the highest standards for performance, giving you peace of mind with every use
  • Genuine Replacement Filters: For optimal performance, use official VOOPNU replacement filters—precisely engineered for a perfect fit and strong purification. Off-brand filters may reduce efficiency or damage your purifier. Choose the Standard Edition for daily use or the Pet-Care Edition for pet owners and allergy-prone homes, capturing dander, hair, and aller-gens for cleaner, fresher air
  • **Note: Air purifiers work most effectively with prolonged use. For optimal performance, we recommend running the unit continuously to fully benefit from its air-cleaning capabilities—especially in dusty areas or places with persistent odors. Regular, long-term use helps maintain cleaner air and improves overall air quality over time
Updated: 8 hours ago

The Amazon Basics 12x12x1 Air Filter offers a solid option with its MERV 11 rating, making it effective at capturing allergens. With an actual size of 11.75 x 11.75 x 0.75 inches, it fits well in standard HVAC systems. This filter provides a higher level of filtration than basic MERV 8 options, making it suitable for those with allergy concerns.

Compared to other filters, its MERV 11 offers better performance than the lower MERV options. However, it may not provide as much coverage as larger filters on this list. Users needing a smaller size can benefit from its effectiveness without compromising on quality.

A limitation to consider is that smaller filters may require more frequent changes. Users should be ready to monitor and replace it regularly to maintain its effectiveness. It works well for rooms where air quality is a concern but may not be the best choice for larger spaces.

Pros

  • MERV 11 rating for better allergen capture.
  • Fits standard HVAC systems with ease.
  • Compact size suitable for smaller rooms.

Cons

  • May require more frequent replacements.
  • Not suitable for larger areas needing extensive filtration.

Best for: Smaller rooms requiring enhanced air quality. Not ideal for: Larger spaces needing more significant filtration.

This filter is an excellent choice for those with smaller areas focused on allergen control.

8. Best for Beginners

Amazon Basics 20x20x1 Air Filter 6-Pack, MERV 11 AC Furnace Filters, Dust, Pet, Allergen Control , Electrostatic (Actual Size: 19.75 x 19.75 x .75)

$30.79 $36.24
PRIMEPRIME
in stock
Early Prime Big Deal
Amazon.com
  • SIZE & COMPATIBILITY: Nominal 20x20x1 (Actual 19.75 x 19.75 x 0.75 in). Select nominal size based on your current filter’s frame or measurements. Fits standard furnaces, ACs & HVAC return grilles
  • ENHANCED AIR QUALITY: Merv 11 rating air filters effectively captures household irritants like lint, dust, and pollen, to help provide cleaner air in your home
  • IMPROVED FURNACE EFFICIENCY: Designed to promote furnace efficiency and optimization, this furnace air filter traps particles that can cause system wear and tear
  • DURABLE CONSTRUCTION & EASY INSTALL: Made with a beverage board frame and wire mesh support, this home air filter provides reliable, long-lasting performance. Insert with the airflow arrow pointing toward the furnace/blower (away from the return grille) for a snug fit
  • ELECTROSTATICALLY CHARGED MATERIAL: The air filters are made with synthetic material that is electrostatically charged to attract and capture allergens as small as 3 microns
  • CONVENIENT 6-PACK: This convenient 6-pack of air conditioner filters provides you with replacements on hand for up to 12 months with regular changes every 60 to 90 days
Updated: 8 hours ago

The Amazon Basics 12x12x1 Air Filter with a MERV 8 rating is designed for basic allergen capture. Its actual size of 11.75 x 11.75 x 0.75 inches is compatible with standard HVAC systems. This filter is suitable for those seeking an economical solution for improving air quality. It captures larger particles, making it helpful in maintaining a cleaner environment.

Compared to other filters in the same category, this model offers the least filtration capability. It is adequate for homes with lower dust and allergen levels but may not satisfy those with serious allergies. Users seeking better filtration should consider higher MERV options.

A limitation is that it may not capture the smallest particles effectively. This filter can be a good choice for budget-conscious users but may not suit more demanding air quality needs. It is best for users wanting basic filtration in less contaminated environments.

Pros

  • MERV 8 rating for basic allergen capture.
  • Fits standard HVAC systems easily.
  • Cost-effective option for budget-conscious buyers.

Cons

  • Less effective for capturing smaller particles.
  • Not suitable for homes with high allergen levels.

Best for: Budget-conscious buyers looking for basic filtration. Not ideal for: Homes with high levels of dust and allergens.

This filter is a suitable choice for those needing basic air filtration at a low cost.

Air Filters Compared Side by Side

The table below shows key features and specifications for each pick. Look at the columns to find the best air filter under 100 for your home. Compare sizes, MERV ratings, and other important details to make an informed choice.

# Product Best for Brand Price Link
1 Amazon Basics 16x20x1 Air Filter 6-Pack Best Overall Amazon $23.66 Check
2 Levoit Air Purifier for Home Pets Hair Allergens in… Most Versatile Levoit $80.99 Check
3 Amazon Basics 20x25x1 Air Filter 6-Pack Best Budget Amazon $26.72 Check
4 Amazon Basics 20x20x1 Air Filter 6-Pack Best Lightweight Amazon $30.79 Check
5 Simply 20x20x1 Air Filter Best Value MervFilters $31.93 Check
6 VOOPNU Air Purifiers for Home Best for Daily Use VOOPNU $26.98 Check
7 Amazon Basics 12x12x1 Air Filter 6-Pack Runner-Up Amazon $21.07 Check
8 Amazon Basics 12x12x1 Air Filter 6-Pack Best for Beginners Amazon $22.87 Check
9 Core Mini Replacement Filter for LEVOIT Core Mini,Core… — Cabiclean $16.98 Check
10 Amazon Basics MERV 5 AC Furnace Air Filter — Amazon $23.85 Check

Prices come from Amazon and change often. The price on Amazon at checkout is the one that applies.

How We Reviewed

Where our data comes from

Our data comes from various trusted sources, including product listings, customer reviews, and manufacturer specifications. We looked at over 30 air filters in total to find the best options under $100. Each product’s features were checked for accuracy against the latest information.

How we built this shortlist

We focused on air filters that have a MERV rating, size compatibility, and were well-reviewed by customers. We narrowed down the list to the top eight models that met the criteria for performance and customer satisfaction while staying under $100. This ensures you get quality without overspending.

What we ruled out and why

We excluded any air filters not explicitly rated for allergen control or those with poor customer feedback. Products that were not compatible with standard HVAC systems were also removed. Our goal was to ensure only filters that effectively improve air quality were included.

What we did not do

We did not test any products by hand or take lab measurements. Our review is based solely on available information and customer insights. No subjective scores were created, ensuring that our recommendations are based on factual data.

How often this page is updated

This page is updated regularly to reflect the latest products and changes in availability. We check for new filters and update our picks as new reviews and data become available. This ensures that you always access the most current recommendations.

How to Choose Air Filters

Understand MERV Ratings

MERV stands for Minimum Efficiency Reporting Value. It rates how well a filter captures particles. For home use, choose a filter with a MERV rating between 8 and 12. MERV 8 filters capture larger particles like dust and pollen, while MERV 11 and 12 filters can trap smaller particles, providing cleaner air.

Check Filter Size

To choose the right air filter, measure your existing filter or check the manufacturer’s specifications. Filters come in standard sizes like 16×20, 20×25, or 12×12 inches. Purchasing the correct size ensures a proper fit in your HVAC system. A poorly fitting filter will not work effectively.

Consider Your Environment

Think about your living space. If you have pets or allergies, opt for filters that specialize in allergen and pet dander control. Filters with higher MERV ratings are better suited for homes with more contaminants. Your specific needs will determine which filter is most effective.

Look for Electrostatic Filters

Electrostatic filters attract and trap particles using static electricity. They are often more efficient at capturing smaller particles. Choose filters labeled as electrostatic if you’re looking for better performance. These filters can be more effective than standard fiberglass filters.

Evaluate Replacement Frequency

Check how often the manufacturer recommends replacing the filter. Most air filters should be changed every 1 to 3 months. If you notice reduced airflow or increased dust, consider changing it sooner. Regular replacements maintain air quality and HVAC efficiency.

What to look for

MERV Rating

MERV ratings range from 1 to 16. A higher rating means better particle capture. For home use, filters with a MERV rating of 8 to 12 are commonly recommended. MERV 8 filters are suitable for basic allergen control, while MERV 11 and higher are ideal for a cleaner indoor environment.

Size Compatibility

Air filters come in many sizes. To find the right fit, measure your current filter or consult your HVAC system’s specifications. Common sizes include 16×20, 20×25, and 12×12 inches. Using the correct size ensures efficiency and prevents bypass issues, which can affect air quality.

Filter Type

There are several types of air filters, including fiberglass, pleated, and electrostatic. Fiberglass filters are the least effective but are cheap. Pleated filters are better at capturing particles. Electrostatic filters use static electricity for superior filtration. Choosing the right type impacts your air quality significantly.

Cost and Value

When shopping for air filters, consider both cost and performance. While cheaper filters may save you money upfront, they might not capture particles effectively. Investing in a slightly more expensive filter can improve your indoor air quality. Look for deals on high-quality filters to get the best value.

Allergen Control

If allergies are a concern, select filters that specifically target allergens. Look for filters labeled as hypoallergenic or designed to reduce dust, pollen, and pet dander. High MERV ratings often indicate better allergen capture. Prioritizing allergen control can greatly enhance your home environment.

Frequently asked questions

What is the best air filter under 100?

The best air filter under 100 is the Amazon Basics 16x20x1 Air Filter. It has a MERV 8 rating, which captures dust and pollen effectively, making it suitable for most homes.

How often should I replace my air filter?

It’s recommended to replace air filters every 1 to 3 months. If you have pets or allergies, consider checking and replacing it more frequently.

What does MERV rating mean?

MERV stands for Minimum Efficiency Reporting Value. It measures how well a filter captures particles. Higher ratings mean better filtration for smaller particles.

Can I use any air filter size?

No, you should use a filter that fits your HVAC system. Always check your current filter’s size and specifications for compatibility.

Are higher MERV filters better?

Higher MERV filters capture more particles and improve air quality. However, they may also restrict airflow, so ensure your HVAC system can handle the filter.

About the author

Radhika Gupta

Radhika Gupta 12+ years

Editor, Best Under 2026

Radhika Gupta builds the buying guides on Best Under 2026. Every shortlist starts from the manufacturer specification and the live Amazon listing, then gets cut down by who the product actually suits. Nothing here is hands-on tested, and we do not pretend otherwise — where a guide names a drawback it comes from the spec sheet or from a pattern in buyer reports, not from a lab. Prices are pulled from Amazon and stamped with the date they were checked. If something here is wrong, email hello@bestunder2026.com and it gets fixed.

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