The High Efficiency Particulate Air, or HEPA, filter, was created to protect scientists from radiation as they developed an atomic bomb during World War II. Today these filters are frequently 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 capture chemicals, odors and smoke.
These filters have a MERV rating of 1721, depending on the brand. This rating demonstrates how effectively a filter can pull out pollutants from the air.
Because of their high-efficiency filtration performance, HEPA filters are dense and can limit airflow. It’s important to check with Gordon's Service Experts Heating & Air Conditioning to make sure your heating and cooling system can handle one.
Media air cleaners are sturdier than regular air filters. They’re often four to five times wider—or more. This barrier mounts closely against your HVAC unit.
Because its operational surface is usually around 10 inches, media filters are able to trap about 95 percent of particulates.
These filters last longer too, typically between three to six months.
There are a few electronic filtering systems you can use 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 everyday filters.
An electronic air cleaner applies a high-voltage magnetic charge to catch particles.
Some can eliminate 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.