What Furnace Filter To Buy -

: Made of polyester or cotton folds. These have more surface area, allowing them to trap more particles without instantly clogging.

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

The first step is checking your current filter for its (e.g., 20x25x1), which is printed on the side. : Made of polyester or cotton folds

Choosing the right furnace filter involves balancing air quality needs with your HVAC system’s mechanical limits. The "best" filter is the one that captures the most contaminants without overworking your furnace’s motor. 1. Find Your Physical Size Expert Maintenance Tip The first step is checking

: 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 8 is the sweet spot for most households. It provides solid filtration without stressing the motor .

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