Filtrete Allergen defense air filters turn your central heating and cooling system into a whole house air cleaner. Featuring electro-static technology, these filters reduce airborne allergens such as household dust, lint, dust-mite debris, mold spores, pollen, pet dander and smog. For best results, change your filter every 90 days.
- Filtrete allergen defense air filters turn your central heating and cooling system into a whole house air cleaner
- Designed with exclusive Filtrete brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through
- Outperforms fiberglass, washable and non-electrostatic pleated 1 in filters
- For residential use only
- Lasts up to 3 months