[This review was collected as part of a promotion.] Very effective at removing odors and smoke. Using with the Filtrete air freshener leaves a wonderful smell.

I have used these filters for years. They say they are good for the whole year, though I still change mine out every 6 months. Ordered through Walmart as they were the only place I could currently find them amidst all this COVID crap going on

As a long time Filtrete user, I remain impressed at its ability to do exactly what it's supposed to do. I have less dust, less odor, and just generally cleaner smelling air. It is worth the price.

I upgraded from the Allergant Protector (also a great filter) just to see if I could tell a difference. I can! The air seems cleaner and it gives me peace of mind knowing that it helps with bateria and viruses.

Filtrete is a great brand and I like using 4" filters so I only have to change them out twice a year. The first time I changed them out, it was amazing how dirty they were - they really cleaned our air!

I prefer Filtrete filters over all other brands and buy them when available but the selection of products is limited at most retailers. Wish the healthy living filters were stocked better.

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 review was collected as part of a promotion.] Filters out all the dust and grime of living near an open park. With the dry weather this year, it has really helped.

[This review was collected as part of a promotion.] I have been using these filters for a few years now & I notice that (this may sound strange) but not only are we sneezing less, but my cat is also.

Remember these filters are for Standard size Returns. However there are HVAC companies that deliberately use Grille size Returns to make a customer buy their filters. GRILLE SIZE Returns are slightly smaller than the Standard counterparts.