What Furnace Filter To Buy Site

Your lifestyle dictates the intensity of filtration you need:

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 "nominal" size is a rounded number for marketing; the "actual" size is slightly smaller to ensure a snug fit. 2. Understand MERV Ratings Your lifestyle dictates the intensity of filtration you

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. Understand MERV Ratings A high-end MERV 13 filter

: The "gold standard," trapping 99.97% of particles down to 0.3 microns. Warning : Most residential systems cannot handle a HEPA filter's air restriction without professional modifications. 4. Tailor to Your Household

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