I've purchased this item several times. Overall I. Stified with its performance The only negative is, the filter turns black (some of them, not all) after about 3 weeks. No smokers in the house. Minimal fried foods, we seldom use candles. My Ac guy said it could be activated charcoal but the package didn't say that. What causes this?

[This review was collected as part of a promotion.] 3M makes some of the best filters I have used in my HVAC. The construction feels solid and the fit is always perfect. When I change them, at the recommended date, they are visibly dirty and I can tell they did their job.

[This review was collected as part of a promotion.] This Filtrete™ MPR 1600 Ultra Allergen Bacteria and Virus Air Filters is doing a great job improving the air quality in my home. First of all, I love that it is a 90 day filter. That means I’m not changing it near as much as a fiberglass filter. I only need a few of these filters to keep me stocked for the entire year. Because of the MPR being so high, I can trust that it helps to capture more micro particles, such as pollen, bacteria, viruses and of course, all the pet dander that we have in the house. I also liked the fact that it proactively helps to proactively attract and capture all of the small particles into the filter to prevent them from circulating throughout the house. If you’re looking for your next filtration product, this air filter is wanted to try.

[This review was collected as part of a promotion.] After having the Filtrete Ultra Allergen Bacteria and Virus filter in use I have defiantly noticed a difference in the air quality. it seems to be getting all the nasties and odors out of the air! It is well marked for installing and went it well.

[This review was collected as part of a promotion.] I have tried several filter brands and most of them collapse after a few weeks. These hold up until it’s time to change them…every time. The filters are made well and catch everything it needs to. We change them every 60 days or so and it keeps the air quality decent in our home of 4 dogs. I will only ever use Filtrete filters from now on.

14x14 is what I always use but the new ones I bought today are 1/4 inch both ways too big and I cant push it into filter holder. I only use this brand and have never had this happen before. I always give top rating but unless you rectify this made too big for 14x14, I will withhold changing my rating to see how you fix this.

[This review was collected as part of a promotion.] I got these filtrete ultra allergen filter and it works great. It seems to keep the air clean so far and they were very easy to use. So far so good. Will definitely recommend to everyone to go out and purchase for themselves

Great deal for the price.

Been using these for several years, good filter.

Like the Filtrete 3 month filters.