A model that scores well for dust removal should perform comparably for pollen. Overall score for the Aprilaire 213 Merv 13 is mainly how well the model removed dust and smoke from a test chamber ...

Clean the air in your home and protect your HVAC system with one of these top-performing air filters from CR’s testsThicker filters do their job better and require less frequent replacement, but ...

AprilAire filters on Amazon feature a 4.6-star rating ... I noticed a significant improvement in the air quality in my home." ...

But 3M and Home Depot have developed their own classification systems called MPR (microparticle performance rating) and FPR (filter performance rating), respectively. “Both types of grading ...