[This review was collected as part of a promotion.] I received a 3M - Filtrete™ Ultra Allergen Bacteria and Virus 1600 MPR 1600 16 in x 20 in x 1 in.n It is the perfect fit, nice and tight. It is a very sturdy filter, and looks so different than the filters I have been using in the past.

[This review was collected as part of a promotion.] This is an excellent filter. There are less expensive filters out there but you get what you pay for. I stopped buying cheap filters years ago. They just don't as good of a job. These are high quality and very effective. Filtrete is a name with an excellent reputation and I would trust most any product with their name on it. I would recommend these to anyone looking for a highly effective filter allergens.

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.] I only buy Filtrete filters for my A/C system. It helps me make it through the tough cedar fever episodes we have in Texas. Pet dander, mold, mildew, super fine particles these filtration systems will keep you and your A/C system healthy.

[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.] 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

[This review was collected as part of a promotion.] I suffer from allergies so I thought I would give these a try. I'm so glad I did because these work great. Since we started using these filters my allergy symptoms have lessened. I would recommend these if you suffer from allergies like me.

[This review was collected as part of a promotion.] the 3M - Filtrete™ Ultra Allergen Bacteria and Virus 1600 MPR 1603-4PK, 20 in x 25 in x 1 in (50.8 cm x 63.5 cm x 2.5 cm) fit perfectly into my system and It is of high quality in terms of sturdiness. It will filter out levels of allergens and bacteria that my old filter wasn't able to handle

[This review was collected as part of a promotion.] I got these filters because: -dogs -kids with mild allergies -changing filters regularly helps your heating/cooling system work more efficiently - I trust 3M Filtrete products -cold season is upon us and these filters have amazing bacterial and viral filtering capabilities. easy to install these are sturdy and fit my furnace perfectly. i noticed. reduction in air flow noise immediately as well as less dust on the furniture. Because my kids have inhalation allergies it is critical that we keep our home air as clean and filtered as possible and these do the job efficiently and effectively.

[This review was collected as part of a promotion.] This is a very nice filter screen. Appears to be high quality and has a nice thick feel to it. It is not a cheap flimsy filter like some products. Seems to be doing a nice job in the house as well. It was easy to insert into the furnace too.