HEPA stands for “High-Efficiency Particulate Air” or “High-Efficiency Particulate Arrestance.” HEPA filters and filtration units must adhere to a high standard of air filtration. If a filter or filtration unit meets the HEPA classification, then it must filter out 99.97% of the particles floating through the air. HEPA filters are manufactured, tested, and certified to meet this and other criteria in order to be extremely efficient. These standards have been set forth by the U.S. government.
What Makes HEPA Filters Different?
In order to filter out that 99.97% of all airborne particles, HEPA filters are made with ultra-fine, thin fibers of glass, which are able to trap allergens and other particles that normal air filters cannot. HEPA filters also have carbon-based materials to help absorb gasses and chemicals. With the thin fibers of glass and carbon-based materials, HEPA filters are able to filter out allergens, pollen, spores, bacteria, pet dander, dust, and even viruses. Many portable air purifiers now use HEPA filters.
Unlike traditional air filters, HEPA filters can still be efficient even after a long period of time filtering out particles. Traditional filters can get dirty, particularly after 30-90 days, and dirty filters cause your HVAC system to work harder than it should, which can reduce its lifespan. Contrastingly, HEPA filters work for much longer and, in some units, only need to be changed once every two years.
How to Get the Most Out of HEPA Filters
While HEPA filters are manufactured to the highest standard, there is still more you can do to help keep the air in your home as clean as possible. Pollutants can also become trapped in your carpet, rugs, and other materials in your home. These particles will remain in your home, regardless of your air filtration unit, unless you regularly clean your home. Even if you decide to use a HEPA air filtration unit in your home, be sure to vacuum regularly, use wood or tile wherever possible, frequently wash bedding and blankets, and keep using high-efficiency HVAC filters. These strategies combined with a HEPA filtration unit can do wonders to the air quality within your home.
If you have further questions about your current air filtration setup, whether with your HVAC system or a HEPA unit, be sure to contact us at Central Heat & Air. We proudly serve all areas around Chattanooga TN, Cleveland TN, as well as Ringgold GA, Chatsworth GA, and Dalton, GA.