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 extract 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 demonstrates how well a filter can clear pollutants from the air.
Because of their high-efficiency filtration performance, HEPA filters are dense and can limit airflow. It’s important to ask A-PLUS Service Experts to confirm your heating and cooling system can run with one.
Media air cleaners are denser than common air filters. They’re often four to five times wider—or more. This barrier mounts closely against your HVAC system.
Because its active surface is usually around 10 inches, media filters are able to catch about 95 percent of particulates.
These filters stay fresher longer too, usually between three to six months.
There are a few electronic filtering systems you can install in your home.
An electrostatic filter uses magnetically charged material to attract. These washable filters are 97 percent effective at removing tiny particles from your home’s air. Plus, they’re also 30 times more effective than regular filters.
An electronic air cleaner applies a high-voltage magnetic charge to catch particles.
Some can remove the majority of indoor air pollutants—particles, germs, bacteria, chemical odors and vapors—by up to 99.9 percent. And decrease ozone, a known lung irritant, made elsewhere in your home.