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Frequently Asked Questions

How often should I change my air filter at home?

Depending on how much traffic your home or business receives can help determine how often your air/furnace filter needs to be replaced. Replacing your filters regularly can help reduce airborne contaminants and lower your energy bills (estimates based on a 1” standard pleated filter.)

  • Lower traffic homes/apartments (single occupant/no pets): every 3-4 months
  • Moderate traffic homes (no pets): every 90 days
  • Moderate traffic homes with pets: every 60 days
  • Heavily trafficked homes with 2+ pets/occupants with allergies: every 30 days

What is a MERV Rating?

MERV stands for Minimum Efficiency Reporting Value. Air filters are measured by the MERV rating, the higher the rating the contaminants the filter is able to capture. Watch our video below to learn which MERV rating best fits your needs:

How do I measure my air filter?

If you don’t already have a filter in your air return or there isn’t a size printed on your current filter, no problem! You can measure it yourself. Just grab a tape measure and measure the height X width X depth.

Actual Size: 19.5” X 23.5” X 3/4” → Nominal Size: 20 X 24 X 1

What is the difference between nominal and actual sizes?

Actual size is the exact dimensions of your filter, often shown in precise fractions. Nominal size is the actual size rounded up to the nearest whole inch and is typically printed in a larger print above the actual size. The nominal size is what you should typically use when shopping for your replacement filter.

What is an antimicrobial filter?

Antimicrobial filters use a special antimicrobial filter media that inhibit the growth of mold, mildew and other airborne contaminants that greatly reduce the number of allergens in the air.

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Customize Your Air Filter in 4 Easy Steps

Step 1
APPLICATION
Step 2
EFFICIENCY
Step 3
DIMENSIONS
Step 4
DELIVERY

Air Filters, Inc. is committed to providing a "one-stop shop" for all of your air filtration requirements. As an air filter manufacturer, we are uniquely positioned to custom make any and all types of air filters.

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