We've been using Filtrete Ultra Allergen Healthy Living filters for the past three and a half years. They keep our house literally dust free and fresh. We have two cats as well and appreciate the advantage of having good filters in our furnace that we change every three months.

We purchased this filter for the first last year. It is an amazing filter. Product does a great job filtering out dust in our home. You can actually see the difference in the minimal amount of dust in the house. It's a great product. Would recommend to any body needing a filter.

Excellent air filter. I buy these 20x20x1 sizes and tape them to a regular box fan for a quick, easy, and affordable air filtration unit that I can move around the house wherever/whenever I want. No need for any special high end unit that requires a unique filter that some company stops supporting.

After changing my regular pleated air filters with these, I essentially was able to come off of allergy medicine daily. I used to get allergy shots. Now I very rarely get an allergy flare up. I highly recommend allergy sufferers get this filter. I hesitated beforehand too but thought what do I have to lose.

The way our air system is set up, we have a 1200 filter installed just under our unit, but we also have another filter mounted in the door. The air is sucked in through the door filter first and then up through the one in the unit. We LOVE this set up and we LOVE using Filtrete filters. With my husband's asthma and allergies I don't know what we would do without them! Thank you Filtrete!

I have used Filtrete filters for years! The 4" filter fits inside the frame of a disconnected electronic filter system that was always problematic. Filtrete filters perform better than the electronic system ever did and provide a superior return on my investment.

I have started using these filters because of my severe allergies that hit me every summer. This past summer I thought would be a bad allergy season because of all the rain we had earlier in the spring. However I actually felt better all summer and it has to be because of the Filtrete filters that I have stared using. You have a customer for life.

Filtrete is the only air filter I trust and of the options available, this is the best. With a dog in the house and a great need to keep the air clean, this is my go-to purchase. I change it regularly and am always please with how much dander, hair, dog hair and dust it collects! While this might not be *advised* by 3M, when putting the filter in I add a couple drops of my favorite Young Living Essential Oils to help the whole house smell great!

Finally found a filter to fit the huge furnace currently outfitted for "electromagnet" filtering. Because I don't use this type of system, I wanted a high quality air filter and Filtrete met the criteria. This is the second filter for me and I love the ease of installing. One question: I am an avid recycler and not sure how to recycle my used filters. Any thoughts?

I've been using this type filter almost 3 months, and I've got to tell you that it's a great improvement over reusable filters that I was using. You can see all of the particles it collected...yes, it is DIRTY! I couldn't really see the dirt on the washable ones. I've noticed that there is less dust collecting in the house' big plus! Haven't noticed reduction of airflow nor higher energy bills. I'll continue using this filter...a little expensive to me- but we'll worth it!