[This review was collected as part of a promotion.] These 3m filters are my go to for furnace filters. They are just the right materials for my furnace to work great. My family all suffers from allergies and I really think these have helped with purifying the air. I also love that they help rod the air of bacteria and viruses. Would definitely recommend for your furnace.

[This review was collected as part of a promotion.] I really like the Filtrete™ Ultra Allergen Bacteria and Virus air filter. It makes me happy knowing that I am providing my family an additional layer of protection from Allergens, illness, and all-around yucky air. It was easy to install and the material is very thick and durable.

[This review was collected as part of a promotion.] I can’t say enough good about this filter. Since using it I’ve noticed a difference in my allergies and quality of air. I feel like I can breathe better and don’t wake up congested as I usually do. I know it’s working for my air purifiers that I keep running throughout my house show that my air quality has improved. These are definitely my new go to filter going forward. I definitely recommend!

[This review was collected as part of a promotion.] I think these 3M filtrate filters do a good job of filtering out allergens in my home. The filters are extremely well-made and easy to install. The material and shaping of the filters make it look like they would do a great job and filtering out the allergens. I’ve already noticed less dust particles in my home as a result of using these filters. I’ve already noticed less dust particles in my home as a result of using these filters Overall, they appear very well-made and durable, and seem to work well at filtering out particles which can irritate allergies of sensitive people

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 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.] I have used the "entry level" (inexpensive ones) 3M filters in the past and didn't have a problem with them. So I thought I would splurge and get the one that lasts for 3 months instead of the monthly ones that I have used. This did not disappoint, the quality is superior in comparison to the competition that is out there. Plus easier to change every quarter than monthly.

[This review was collected as part of a promotion.] We were admittedly overdue to change our filter and noticed an almost IMMEDIATE difference in the air. I had been waking up with headaches recently, which have since stopped, and I attribute to allergens that had been coming through the vents from our old filters. We are extremely happy with these filters so far!

[This review was collected as part of a promotion.] 3M Filtrete Ultra Allergen Bacteria and Virus air filter makes the air in the house feel and smell cleaner. I feel comforted that the filter removes bacteria and viruses. Built well and easy to install.

[This review was collected as part of a promotion.] I have tried so many filters, but nothing worked like 3M - Filtrete™ Ultra Allergen Bacteria and Virus. It's perfect for my home, with a dog that sheds everywhere and little ones, i needed the right filter to keep virus and bacteria away! very pleased with the results, i got a whole bunch to cover the whole house. Great quality and efficient for sure.