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Furnace Filters

Best Furnace Filters

Name: Filterbuy 16x25x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 15.50 x 24.50 x 0.75 Inches)
Brand: Filterbuy
Price: 32.92 USD
Availability: InStock

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Filterbuy

5%OFF

Filterbuy 20x25x6 Air Filter MERV 11 Allergen Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement for Aprilaire Space-Gard 201/2200 / 2250 (Actual Size: 19.75 x 24.25 x 6.00 Inches)

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Filtrete

15%OFF

Filtrete 16x20x1 AC Furnace Air Filter, MERV 5, MPR 300, Capture Unwanted Particles, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6-Pack (Actual Size15.69x19.69x0.81 in)

9.8

score

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Filterbuy

Filterbuy 16x25x4 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 15.50 x 24.50 x 3.63 Inches)

9.6

score

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Filtrete

10%OFF

Filtrete 16x25x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 2 Pack (Actual Size 15.719 x 24.72 x 0.84 in)

9.3

score

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Filtrete

13%OFF

Filtrete 20x25x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 2 Pack (Actual Size 19.688 x 24.688 x 0.84 in)

9.1

score

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Aprilaire

AprilAire 213 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 13, Healthy Home Allergy, 20x25x4 Air Filter (Pack of 1)

8.8

score

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Filterbuy

23%OFF

Filterbuy 20x25x5 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters for Honeywell FC100A1037, Lennox X6673, Carrier, & More (Actual Size: 19.88 x 24.75 x 4.38 Inches)

8.5

score

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Filtrete

Filtrete 16x25x1 AC Furnace Air Filter, MERV 8, MPR 700, Tough on Pollen, Easy on Airflow, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4-Pack (Actual Size 15.69 x 24.69 x 1.56 in )

8.3

score

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Filtrete

Filtrete 16x25x1 AC Furnace Air Filter, MERV 12, MPR 1500, CERTIFIED asthma & allergy friendly, 3 Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 2-Pack (Actual Size 15.69 x 24.69 x 0.78 in)

Filterbuy

17%OFF

Filterbuy 16x25x5 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters for Honeywell FC100A1029, Lennox X6670, Carrier, & More (Actual Size: 15.75 x 24.75 x 4.38 Inches)

7.7

score

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Buying Guide for the Best Furnace Filters

Choosing the right furnace filter is crucial for maintaining good air quality in your home and ensuring the efficient operation of your heating system. The right filter can help reduce allergens, dust, and other particles, making your home healthier and more comfortable. When selecting a furnace filter, consider factors such as filter size, MERV rating, material, and lifespan. Understanding these key specifications will help you make an informed decision that best suits your needs.

Filter SizeFilter size is the physical dimensions of the filter, typically measured in inches (length x width x thickness). It's important because the filter must fit snugly in your furnace to work effectively. Sizes can vary widely, so check your furnace's manual or the existing filter for the correct dimensions. Common sizes include 16x25x1, 20x20x1, and 20x25x1. If the filter is too small, it won't cover the entire intake, allowing unfiltered air to pass through. If it's too large, it won't fit properly. Always measure your current filter or the filter slot to ensure you get the right size.

MERV RatingMERV (Minimum Efficiency Reporting Value) rating measures a filter's ability to capture particles. The higher the MERV rating, the more particles the filter can trap. MERV ratings range from 1 to 20. For residential use, a MERV rating between 8 and 13 is typically sufficient. Lower ratings (1-7) are less effective at capturing smaller particles and are best for basic dust and pollen. Higher ratings (14-20) are used in hospitals and clean rooms but may restrict airflow in residential systems. Choose a MERV rating based on your specific needs, such as allergies or asthma, while ensuring it doesn't impede your furnace's airflow.

MaterialFurnace filters are made from various materials, including fiberglass, pleated paper, and electrostatic media. Fiberglass filters are inexpensive and provide basic filtration, suitable for capturing large particles like dust and lint. Pleated paper filters offer better filtration and can capture smaller particles, making them a good choice for homes with pets or allergies. Electrostatic filters use static electricity to attract and capture particles and are highly effective at improving air quality. Consider your household's specific needs, such as the presence of pets or allergy sufferers, when choosing the filter material.

LifespanThe lifespan of a furnace filter indicates how often it needs to be replaced. This can range from one month to a year, depending on the filter type and usage. Disposable filters, like fiberglass and pleated paper, typically need to be replaced every 1-3 months. High-efficiency filters and electrostatic filters may last longer, up to 6-12 months. Regularly replacing your filter ensures optimal air quality and furnace efficiency. Consider your home's air quality, the presence of pets, and the frequency of furnace use when determining the appropriate filter lifespan for your needs.

Best Furnace Filters

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Buying Guide for the Best Furnace Filters