Best HVAC Air Filters For Immune-Compromised Households: How HEPA, MERV 13, And Activated Carbon Filtration Defend Against Viruses, Bacteria, Mold, And Wildfire Smoke Exposure

A view of a high-efficiency MERV 13 air filter being installed into a home HVAC unit.

The 1-inch filter slot in a typical Florida air handler holds about 96 square inches of pleated media. That’s the surface area standing between an immunocompromised patient’s lungs and everything the return ducts pull back into the system on every cycle. Small piece of equipment. For a household with someone in chemotherapy, post-transplant, or on … Read more