Our MERV 13 picks put so little strain on HVAC systems ... There are also visual cues you can look for when judging whether to replace your furnace filter, Owen wrote. Clogging increases the ...

Dust, pollen, smoke removal is how well a model cleared air of fine clay dust and cigarette smoke when operating at its highest speed. A model that scores well for dust removal should perform ...

Its MERV 13 rating puts it squarely in HEPA territory. It’s capable of filtering out particles as small as 0.3 microns, but the furnace filter needs to be changed every 90 days to work as ...

Dust, pollen, smoke removal is how well a model cleared air of fine clay dust and cigarette smoke when operating at its highest speed. A model that scores well for dust removal should perform ...

Are premium furnace filters worth the investment ... experts recommend choosing a filter with a MERV rating of 8 to 13.