Review on 🌿 Filtrete Healthy Allergen Reduction: Guaranteed Relief for Allergy Sufferers by David Sanchez

We have been using these 3M AC filters for many years. Purple (they are all color coded). They seem expensive but we only change them 4 times a year and it's an investment in protecting your air conditioner. Several times during our seasonal service, HVAC specialists have commented that we have to use "those 3M filters" because they have nothing to clean. I've heard one negative comment that they restrict airflow too much, but I disagree, if you look at the filter you'll see that the pleats are easily 2-3 times tighter than a normal filter, which means that the surface area is 2-3 times more than conventional filters. filtering of the passing air.