Meets the American Lung Association Health House Indoor Air Quality Guidelines. Captures: 90% of large allergens - like mold spores and pet dander - from the air passing through the filter; microscopic allergens like dust, smoke and smog particles; and bacteria and particles that can carry viruses. No unnecessary antimicrobial chemicals added. Filtrete filtering material will not support the growth of bacteria, mold, mildew or fungi in normal use.
- 1250 Performance Rating, MERV 11 Rating.
- Convenient package of 4 filters.
- Up to 3 months of filtering performance.
- 25% more efficient than the Filtrete Micro Allergen Filter. 15% better airflow then the Filtrete Micro Allergen Filter.