The Science

Filtrete™ Filters Use Exclusive 3-in-1 Technology to Pull in and Trap Unwanted Particles, Allowing Cleaner Air to Flow Through.

It’s important to have a top-of-the-line air filter in your heating and cooling system to help maintain airflow and deliver cleaner air throughout your home.

Filtrete™ Filters with electrostatic charge have exclusive 3-in-1 technology that acts like a magnet to attract and capture microscopic allergens that can pass through fiberglass or non-electrostatic filters. Your air is cleaned each time it passes through the filter.

Plus, airflow through the filter remains strong and can last up to 3 months before often having a pressure drop below that of a brand new competitor filter.

Electrostatic filters are most effective when they are new and clean. Make sure you’re changing your filter at least every three months for maximum effectiveness.

  • Air Fact

    Air Fact

    Air pollution, including ozone and particle pollution, can be transported by the wind hundreds of miles away from its source.

  • Filtrete Filter Family

    Filter Guide

    Every home and family is different. From allergens to pets to climates you live in, a variety of factors should influence your air filter purchasing decision. Use our guide to help find the best Filtrete™ Filter for your home.

  • Where to Buy

    Where to Buy

    Pick your product to find a retailer near you.


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Filtrete is a trademark of 3M.