- Filtrete Allergen Defense air filters turn your central heating and cooling system into a whole house air cleaner. Developed to pull in and trap unwanted particles, including: lint, dust and dust mite debris, mold spores and pollen, pet dander, and smoke and smog.
- Designed with Filtrete Brand 3-in-1 technology from 3M to pull in and trap unwanted air particles while letting clean air flow through
- Microparticle Performance Rating 1000
- Outperforms fiberglass, washable and non-electrostatic pleated 1" filters
- Lasts up to 3 months