I bought the 4" filters for the first time in the fall. It is worth the price difference. My unit is up in the attic so getting up in the attic is a pain. Now I only need to change the filter every 3 months and it really helps with the dust in the air.. The air quality in our home has really improved.

[Employee of 3m-filtrete] I am fairly diligent in changing the air filter in pur home. The amount of dust that is filtered out of the air is amazing. Thanks for this great product.

My family is very prone to allergic reactions from inhalants in our home. We have dogs and, of course dust issues and this is one of the best at drawing in and trapping those allergens.

[This review was collected as part of a promotion.] My husband bought another brand last time and is there ever a difference in performance. Not even close. Back to Filtrete Purple!

I don't have many brand options for this product because of it's configuration. Fortunately, Filtrete makes one and I've had great success for years with Filtrete air filters.

This air filter does a better job of trapping all the junk in the air of our house. It located in a very clean walk-in closet and we're at what it catches. Its especially effective during the spring pine tree pollen season

This filter was restrictive enough to cause my evaporator to start icing up. Should be labeled that a HVAC technician needs to adjust refrigerant charge or up the speed tap on blower motor.

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\.

I purchase one of your other filters and seen that it did not preform as well, when I purchase the Healthy living filter, I saw a big difference, my wife were able to sleep better at night and there was less dust on top of my frig,

Purchased this after some work on air conditioner. I will continue to purchase these filters as opposed to the cheap ones. Improvements in odor, dust.