Filtrete Ultimate Allergen 20x20, Air Filter proactively protects you against dust, bacteria, viruses and allergens from the air passing through your filter. It is designed with an 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.
This is the only brand of filter we use because we know we can count on the professional quality of them. We have autoimmune disease and asthma and this is huge for the air quality in our home. Thank you Filtrete! [This review was collected as part of a promotion.]