Filtrete 18"x24"x1" Purple Ultra Allergen Pleated Furnace Air Filter. It is 90% effective at capturing large allergens like mold spores & pet dander. Electrostatically charged to capture microscopic allergens like dust, smoke & smog, it also captures bacteria & particles that can carry viruses. Meeting the guidelines of the American Lung Association Health House Program, this filter has a MPR rating of 1500 and lasts up to 3 months.
- 18 in. x 24 in. x 1 in.
- Purple color
- 90% effective at capturing large allergens like mold spores & pet dander
- Electrostatically charged to capture microscopic allergens like dust, smoke & smog
- Captures bacteria & particles that can carry viruses
- Meets the guidelines of the American Lung Association Health House Program
- MPR rating of 1500
- Lasts up to 3 months
