Welding typically requires MERV 11, 15 or 16, but welding application and consumable type will dictate what filter MERV rating is required for your system so refer to the ANSI/ASHRAE Standard 52.5 ...

This typically means first finding your existing filter (or filters). HVAC filters are often located in a slot next to your furnace or air handler. But some HVAC systems have filters inside the ...

If we were looking to buy a new filter today for our HVAC (heating, ventilation, and air conditioning) system, we’d opt for one rated MERV 13. These filters efficiently capture pollen, mold ...

If they’re compatible with your air-conditioning system, look for a filter labeled MERV 11 or MERV 13, suggests William Bahnfleth, a professor of architectural engineering at the Pennsylvania ...

HEPA is a type of pleated mechanical air filter that can ideally remove at least 99.97 percent of dust, pollen, dander, mold, and bacteria particles as small as 0.3 microns.

The Filtrete MPR 1900 is a 1-inch-thick air filter that’s impressive at removing dust, pollen, and smoke from the air when it’s running at its highest fan speed, though it’s only average at ...

What defines a HEPA filter? To carry the HEPA name, a filter should meet certain standards as to what it can capture from the air that passes through it. The requirements vary slightly depending ...