The High Efficiency Particulate Air, or HEPA, filter, was developed to keep scientists safe from radiation as they built 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 bigger. 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 model. This rating indicates how effectively 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 touch base with BW/Cook Service Experts Heating & Air Conditioning to make sure 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 mounts closely against your HVAC system.
Because its functional surface is usually around 10 inches, media filters are able to trap about 95 percent of particulates.
These filters last longer too, commonly between three to six months.
There are several different types of electronic filtering systems you can install in your home.
An electrostatic filter uses magnetically charged material to capture. 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 ordinary filters.
An electronic air cleaner involves 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 minimize ozone, a known lung irritant, produced elsewhere in your home.