Does my Phoenix home really need air filtration beyond a 1-inch filter?
Yes, especially if anyone in the home has allergies, asthma, or pets. A 1-inch fiberglass filter captures large particles like lint and pet hair but not the fine particles that cause symptoms. Upgrading to a properly-sized M95-rated media filter (MERV 16 equivalent) captures particles down to 0.3 microns — fine pollen, smoke, dander, viral particles.


