Filtrete 20x24x1, AC Furnace Air Filter, MPR 1900, Healthy Living Ultimate Allergen, 6-Pack (exact dimensions 19.81 x 23.81 x 0.78)

Blocks out dust, smoke, bad vibes, haters, your ex. Everything! Get one on your HVAC System and get a 20x20 filter and slap it on a 20x20 box fan with some adhesive for a portable air purifier :)

You can get these at Lowes for $16.97 a piece if you buy a minimum of 4. The ones I changed today had gotten pretty filthy by 90 days so I am planning to change them more often during high use months.

Value purchase. Rated highly on consumer reports, and purchase in bulk saves you. I am about to purchase a second pack.

They work fine.

Great filters!

All Ive done is upgrade from the 3M filtrete 18x24x1 MPR 1500 to its MPR 1900.

Wouldnt buy any other brand!!

I like having a bunch of filters on hand, and these are supposed to be higher quality than my local big box store. Then again I know virtually nothing about rating HVAC filters, only that Im supposed to replace them every three months.

Within just a few days you could dramatically notice the amount of dust particle’s in the house had reduced to almost none, Way less dog hair floating around and much less sneezing in the house.

I have tried many different types of filters from 5ge cheapest to most expensive and bottom line is that this one has work perfectly.