Filtrete 20" x 20" x 1" Ultimate Allergen Reduction Filters, 3 pk.

[This review was collected as part of a promotion.] Been a fan of the 3M filters for years. We had our furnace serviced earlier in the month, and the service technician commented that it was nice servicing a furnace when the filter isn't extremely dirty. I told him that we use the 1500 series and change it every other month. He told me we could do the same thing, but use the cheapest blue filters and replace them every other month. I disagreed, and told him that we can agree to disagree, that the 1500 series keeps our house clean and has less dust than the other filters. He then changed his mind or at least his comment, and said that our house does seem really clean and less dust than most homes, and that the 1500 series might be the best choice for our home. It's worked for us, maybe for other households too!

For the past 15 years I have gone out of my way to make sure the air I breathed was clean so I have used Filtrete 1500 or above Air Filters and changed them every month. Your suppose to change them every 3 months but in Phoenix Arizona one month's dirt is enough for me. I have experimented with a few different brands of air filters but those always seemed to not get black after a months use like the Filtrete do or for a couple of them even get a little grey. Filtrete Air Filters are great at getting dirty and the dirtier the filter the cleaner the air.