Customer Reviews for 3M - Filtrete 20 in. W X 20 in. H X 4 in. D Polyester 12 MERV Pleated Allergen Air Filter 1 pk
Customer Rating
5
Best Performance
on September 30, 2020
Posted by: dogojoel
from Yakima County, WA
Gender:Male
I use 16x20x4 inch MERV 12 filters from Filtrete because they have the best build quality of all the filter brands I have used. I just have an issue with the vague MERV rating for a particular filter. Filtrete uses their own rating system (1550 for example) and then I have to do some research to find the MERV rating.
Outside, air quality was 300-1100 (off-the-scale and very hazardous) with smoke hanging in the air like dense fog. Inside, the indoor air quality monitor says the air is very clean (AQI 23). This is with running the furnace fan continuously and changing filters every 3-4 weeks. The only downside is the smart filter feature doesn't actually know when the filters are dirty, only how much air volume has gone through them.
I've been buying the Filtrete filters for at least 15 years, and as they've increased the quality of the product, I've moved with them. So far, at 75, with a couple of dogs, and candle burninf, and wood stove, I'm still well. Thank you Filtrete!