The High Efficiency Particulate Air, or HEPA, filter, was designed to keep scientists safe from radiation as they worked on 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 take out 99.97 to 99.99% of particles measuring 0.3 microns and larger. 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 shows how effectively a filter can pull out pollutants from the air.
Because of their high-efficiency filtration capabilities, HEPA filters are dense and can limit airflow. It’s important to ask Fras-Air/General Service Experts to make sure your heating and cooling system can work with one.
Media air cleaners are sturdier than regular air filters. They’re often four to five times wider—or more. This barrier mounts snugly against your HVAC equipment.
Because its functional surface is usually around 10 inches, media filters are able to trap about 95 percent of particulates.
These filters work longer too, usually between three to six months.
There are a few electronic filtering systems you can add 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 uses a high-voltage magnetic charge to catch particles.
Some can erase 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, created elsewhere in your home.