FilterBuy Resource Center
Indoor Air Quality
Let’s imagine that it’s time to replace your HVAC air filter. Everything is going as usual until you remove the old air filter. For some reason, the air filter is damp, and wet air filters are not normal.
Air Filter Sizing
Air Filter Ratings
Every furnace filter has a Minimum Efficiency Reporting Value (MERV) rating, which measures how efficiently the filter captures particles of specific sizes that pass through it as your furnace operates.