I absolutely love using Filtrete filters. I choose the Healthy Living product because it does and takes care of it all. They work so well I do not even have to dust the furniture anymore. Filtrete is worth every penny and is a time saver to boot.

[This review was collected as part of a promotion.] This product is my choice in HVAC filters--I have been using Filtrete filters for years without complaint. It is sturdy, yet allows sufficient airflow ease for my older system.

I've tried a lot of different filter makers. The Allergen Defense 1200 made a HUGE difference in just 6 hours after I installed it. My headache went away and the nasal drip stopped! I'm a true believer in my improved health!

[This review was collected as part of a promotion.] I have been using Filtrete filters for 20+ years. I feel that they work extremely well to reduce the dust and allergens in my home. I replace them every 3 months as suggested.

I use this filter in my home with three cats and a dog. Filtrete helps keep the dust and dander to a minimum. I can't wait to try the Odor Reduction filter, too.

the physical dimensions are > 4", actually close to about 4.5". Be sure you're housing will accommodate 4.5" before purchasing. Can't comment on the function because these would not fit.

Put the model 16x25x4 in Bryant furnace, after one run the cardboard retaining material was sucked in and had to destroy it to get it out. As a 3M stockholder I am not happy\.

Since I started using this filter, I stopped getting sinus infections and suffer less from allergies! Great product. You can feel the effects of putting in a new air filter immediately.

We have been using these for years, living in Florida and believe that these filters keep down the amount of pollen from outside and dander from our 2 dogs inside.

According to our service technician, pet hair can wreck havoc on your HVAC system. The Healthy Living Air Filter addresses the issue so that it is no longer a problem. Works great!