The High Efficiency Particulate Air, or HEPA, filter, was designed to protect scientists from radiation as they worked on an atomic bomb during World War II. Today these filters are often used in hospitals, science labs and even homes.
HEPA filters are rated to remove 99.97 to 99.99% of particles measuring 0.3 microns and greater. This includes pollen, dirt and dust. A HEPA air cleaner with activated carbon filters can trap chemicals, odors and smoke.
These filters have a MERV rating of 1721, depending on the brand. This rating indicates how effectively a filter can pull out pollutants from the air.
Because of their high-efficiency filtration performance, HEPA filters are dense and can reduce airflow. It’s important to check with Comfortech Service Experts Heating & Air Conditioning to confirm your heating and cooling system can run with one.
Media air cleaners are much thicker than basic air filters. They’re often four to five times wider—or more. This barrier mounts tightly against your HVAC system.
Because its active surface is usually around 10 inches, media filters are able to trap about 95 percent of particulates.
These filters stay fresher longer too, typically between three to six months.
There are a couple of electronic filtering systems you can use in your home.
An electrostatic filter uses magnetically charged material to capture. These washable filters are 97 percent effective at clearing tiny particles from your home’s air. Plus, they’re also 30 times more effective than everyday filters.
An electronic air cleaner involves a high-voltage magnetic charge to capture particles.
Some can remove the majority of indoor air pollutants—particles, germs, bacteria, chemical odors and vapors—by up to 99.9 percent. And reduce ozone, a known lung irritant, made elsewhere in your home.