The High Efficiency Particulate Air, or HEPA, filter, was designed to shield 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 capture chemicals, odors and smoke.
These filters have a MERV rating of 1721, depending on the brand. This rating shows how effectively a filter can pull out pollutants from the air.
Because of their high-efficiency filtration performance, HEPA filters are deep and can limit airflow. It’s important to check with Rob's Albertan Service Experts to confirm your heating and cooling system can handle one.
Media air cleaners are much thicker than basic air filters. They’re often four to five times wider—or more. This barrier mounts snugly against your HVAC unit.
Because its functional surface is usually around 10 inches, media filters are able to catch about 95 percent of particulates.
These filters work longer too, commonly between three to six months.
There are a couple of electronic filtering systems you can install in your home.
An electrostatic filter uses magnetically charged material to catch particles. 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 regular filters.
An electronic air cleaner involves a high-voltage magnetic charge to capture particles.
Some can erase 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.