The High Efficiency Particulate Air, or HEPA, filter, was developed to protect scientists from radiation as they built an atomic bomb during World War II. Today these filters are regularly 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 capture chemicals, odors and smoke.
These filters have a MERV rating of 1721, depending on the model. This rating indicates how successfully a filter can clear pollutants from the air.
Because of their high-efficiency filtration abilities, HEPA filters are dense and can restrict airflow. It’s important to ask Wesley Wood Service Experts Heating & Air Conditioning to verify your heating and cooling system can work with one.
Media air cleaners are much thicker than regular air filters. They’re often four to five times wider—or more. This barrier fits tightly against your HVAC equipment.
Because its functional surface is usually around 10 inches, media filters are able to catch about 95 percent of particulates.
These filters last longer too, usually between three to six months.
There are a few electronic filtering systems you can use in your home.
An electrostatic filter uses magnetically charged components to attract. 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 ordinary 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 minimize ozone, a known lung irritant, made elsewhere in your home.