About HEPA Filters
Air pollution isn’t just car exhaust or factory smoke. Dust mites, mold spores, pollen, and pet dander in the air inside your home can cause problems if your family has allergies or asthma. Using HEPA filters can trap these pollutants and may help bring allergy relief.
How HEPA Filters Work
HEPA stands for high-efficiency particulate air. A HEPA filter is a type of mechanical air filter; it works by forcing air through a fine mesh that traps harmful particles such as pollen, pet dander, dust mites, and tobacco smoke.
Selecting and Using an Air Filter
You can find HEPA filters in most air purifiers. These are small, portable units that may work for a single room. If you are considering buying a HEPA filter, find out how much air that the filter can clean. Be sure you buy one that is big enough for the room where you plan to use it.
The best room for a unit is the one where you spend most of your time — usually your bedroom. You can find HEPA filters in most home improvement stores or online marketplaces.
Some vacuum cleaners have HEPA filters that trap more dust from their exhaust. HEPA-equipped vacuums throw less dirt and fewer microscopic dust mites back into the room as you vacuum. Some people say allergy symptoms improve after using these vacuums.