What Furnace Filter To Buy File

: MERV 13 is excellent for asthma but should be checked for compatibility with your HVAC system’s airflow requirements. Expert Maintenance Tip

The first step is checking your current filter for its (e.g., 20x25x1), which is printed on the side. what furnace filter to buy

The Minimum Efficiency Reporting Value (MERV) tells you how well a filter traps particles. MERV Rating Large particles (lint, dust) Protecting the furnace motor only. MERV 5–8 Mold spores, hair, pet dander Standard homes with no pets or allergies. MERV 11–13 Smoke, bacteria, smog Homes with pets, smokers, or allergy sufferers. MERV 14–16 Viruses, fine tobacco smoke Highly sensitive individuals or clinics. 3. Choose Your Filter Material : MERV 13 is excellent for asthma but

A high-end MERV 13 filter that is clogged with dust is worse for your air—and your energy bill—than a clean MERV 8. Experts at Guardian Technologies recommend replacing filters every , or as often as every 30 days during peak heating/cooling seasons or if you have multiple pets. MERV Rating Large particles (lint, dust) Protecting the

: MERV 11 is recommended for multi-pet homes or those with seasonal allergies, as it captures finer dander and pollen.

: Uses static electricity to attract dust like a magnet. These come in disposable or washable versions.