- Up to 20% off
Aerostar
Aerostar Replacement Air Purifier Filter for Winix Filter A, 115115
From $31.99$35.99Unit price /UnavailableIn stock -
- 11% off
ecoAire
Core 300 H13 True Hepa Replacement Filter for Levoit Vortexair air purifier 2 pack
$46.99$52.99Unit price /UnavailableIn stock -
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Aerostar
Aerostar Replacement Air Purifier Filter for Coway AP1512HH Mighty Air Purifier
From $21.00$31.99Unit price /UnavailableIn stock -
We deliver exactly what you need right to your door
Whether you need a standard 20x20 air filter, a thin 24x28 filter, or a custom 1 inch air filter you can't find in stores.
- Our premium quality air filters are available in Standard and Custom Size Air Filters
- Superior Quality, Low Prices
- High Filtration Efficiency
- Pleated Air Filters, Furnace Filters, HVAC Filters, and Whole House Filters in Multiple MERV Ratings to fit your needs
- Changing your air filters regularly can reduce your energy bill by up to 15%
How often should I replace my air purifier filter?
Most air purifier filters should be replaced every 6–12 months, depending on how frequently you run your unit and the air quality inside your home. Homes with pets, smokers, high traffic, or seasonal allergies may require more frequent replacements.
HEPA filters gradually fill with microscopic particles that you can’t see, so even if the filter looks “clean,” it may be restricting airflow. Carbon filters that trap odors and VOCs often wear out sooner because the carbon becomes saturated over time.
Tip: If your purifier has a filter indicator light, use it as a guide. Always replace the filter sooner if you notice reduced airflow or a return of odors.
Best practice: Set a reminder or subscribe to auto-delivery so you never run your purifier with an overdue filter.
How does the Aerostar Coway replacement compare to the OEM filter?
Same HEPA filtration grade, 99.97% capture at 0.3 microns, but up to 34% less per unit. Made in Orlando, FL with free shipping. 30-day hassle-free returns if it doesn't fit your unit.
What’s the difference between HEPA filters and activated carbon filters?
HEPA and activated carbon serve two completely different purposes. Most air purifiers use both for full-spectrum air cleaning.
HEPA Filters:
- Capture 99.97% of particles down to 0.3 microns
- Best for dust, pollen, pet dander, bacteria, mold spores, and wildfire smoke particles
- Protect against respiratory irritants and allergens
- Usually replaced every 6–12 months
Activated Carbon Filters:
- Absorb odors, gases, VOCs, cooking smells, pet odors, and smoke
- Essential if you’re dealing with chemical off-gassing, wildfire season, or strong household smells
- Typically replaced every 2–6 months, depending on odor levels
Many of our replacements include a 3-in-1 filter combination that pairs both technologies for maximum purification.