Filtrete Ultra Allergen Air Filter

Filtrete Ultra Allergen 20×20 Air Filter proactively protects you against dust, bacteria, viruses and allergens from the air passing through your filter. This two pack filter is designed with exclusive Filtrete Brand technology from 3M to pull in and trap unwanted air particles while letting cleaner air flow through. For maximum performance, change your filter at least every 90 days. FeaturesFiltrete Ultra Allergen 20×20 Air Filter proactively protects you against dust, bacteria, viruses and allergens from the air passing through your filter. This two pack filter is designed with exclusive Filtrete Brand technology from 3M to pull in and trap unwanted air particles while letting cleaner air flow through. For maximum performance, change your filter at least every 90 days.