Our Filters

Everything you need to know about our premium filters

Premium Construction

Our fibers are chemical-free, antimicrobial, hydrophobic, and electrostatic. They attract and remove contaminants from your indoor air and prevent the growth of mold, mildew, and bacteria. The filter's frame is made out of premium, heat-resistant paperboard, and zinc-coated wiring supports the filter's pleated design, keeping airflow efficient.

Cleaner Air, More Savings

Windmill filters protect against up to 98% of larger airborne particles so you can breathe easy (ahhh...). Plus, changing them regularly helps prevent costly HVAC repairs and can save you up to 15% on your monthly cooling and heating bill.

60+ Years of Filtration Experience

Windmill filters are made by filter pioneers and air quality specialists right here in the USA. With over 60 years of experience and R&D on 4 different continents, we are proud to bring this filter expertise directly to your home.

#1 Filter Media Manufacturer

We partnered with the #1 filter media (aka fibers) manufacturer in the world. This best-in-class technology ensures longer lasting filters and higher filtration performance (up to 30x cleaner air vs traditional fiberglass filters).

Compare Filtration Options

  • The everyday filter, removing a home's biggest irritations for those who just want to get the job done


    MERV 8
    Dust

    Pollen

    Mold

  • The purrr-fect filter for pet owners or anyone else who wants added fibers for even more filtration


    MERV 11
    Dust

    Pollen

    Mold

    Bacteria

    Pet Dander

    Smog

  • The catch-em-all filter, with the tightest fibers, for those looking for hospital-like air filtration


    MERV 13
    Dust

    Pollen

    Mold

    Bacteria

    Pet Dander

    Smog

    Oils

    Wildfire Smoke

    Viruses