The High Efficiency Particulate Air, or HEPA, filter, was developed to protect scientists 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 extract 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 capture chemicals, odors and smoke.
These filters have a MERV rating of 1721, depending on the model. This rating demonstrates how effectively a filter can remove 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 Jack Nelson Service Experts to confirm your heating and cooling system can handle one.
Media air cleaners are denser than regular air filters. They’re often four to five times wider—or more. This barrier fits snugly against your HVAC unit.
Because its active surface is usually around 10 inches, media filters are able to trap 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 install in your home.
An electrostatic filter uses magnetically charged substance 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 regular filters.
An electronic air cleaner uses a high-voltage magnetic charge to trap particles.
Some can remove 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, produced elsewhere in your home.