| Air purifiers with HEPA air filters are the main | | | | to asbestos, lead and other toxic substances. |
| choice for most people when it comes to an | | | | HEPA air purifiers do contain a removable filter |
| effective room-purifying appliance. For a long time, | | | | and these filters either need to be changed, or |
| HEPA filters have removed pollen and other | | | | more recently washed to remove contaminants. |
| pollutants from commercial green houses and | | | | During cleaning, some particles are released back |
| sensitive enclosures to prevent crossbreeding and | | | | into the air, but once the machine is back in |
| contamination. | | | | operation they will quickly be recaptured. |
| The HEPA filters are designed to eliminate dust, | | | | Amazingly, vacuum cleaners were found to |
| dust mites, mold spores, and pet dander from | | | | account for almost 75% of the dust and |
| both commercial locations as well as the home | | | | contaminants released into the air and it was |
| environment. They are highly efficient filters that | | | | quickly realized that something had to be done to |
| remove radioactive particles from the air. They | | | | minimize this. It wasn't very long before |
| have a wide range of applications especially in | | | | researchers devised a small HEPA filter for the |
| installations where there is no tolerance for pollen | | | | household vacuum cleaner. Since then, almost |
| or dirt laden air. | | | | every vacuum cleaner on the market has been |
| HEPA filters were initially manufactured for the | | | | outfitted with some form of filtration. |
| Atomic Energy Commission to remove | | | | Almost all air purifiers will have some form of |
| radioactive and dirt particles from the working and | | | | patented filtration process that is better, newer |
| research environment. The filter, which was | | | | and more efficient than other models available, |
| originally made from recycled paper, had small | | | | but the truth of the matter is that the HEPA |
| passages that allowed air to flow through while | | | | brand of certifications are the industry standard. |
| dirt and other particles remained trapped inside | | | | Through continuing research and product |
| the filter. | | | | development, HEPA brand filters and vacuum |
| HEPA filters are also made from finely woven | | | | cleaners have risen to the top of the market |
| glass particles that are stitched together to form | | | | because they are typically the most efficient and |
| an impenetrable web that traps particles without | | | | the most effective at removing unhealthy |
| occupying much space. The glass filters are then | | | | contaminants from the air. |
| rolled in a tight package and placed inside the | | | | Before you purchase any air purification system, I |
| appliance. This technique allows the manufacturer | | | | advise you to do as much research as possible. |
| to expose as much surface area for filtering in as | | | | Some air purifiers are targeted towards |
| small a space as possible. | | | | microorganisms only, where others are specifically |
| Due to their high efficiency, HEPA air filters | | | | designed to remove dirt and pollen. A HEPA |
| became widely used in particle sensitive areas | | | | certified air purification system will eliminate almost |
| such as operating rooms and pharmaceutical | | | | all air pollutants and is an excellent selection for |
| facilities. By law they are required for use at | | | | broad applications. |
| manufacturing plants where workers are exposed | | | | |