| HEPA is the acronym for 'high efficiency | | | | they are introducing more and more models to |
| particulate air'. Using a HEPA filter vacuum cleaner | | | | consumers with improved features and subtle |
| is the perfect option for maintaining a clean home | | | | refinements. They are designed to trap much |
| environment, free of allergens for asthma or | | | | smaller pollutants and particles by the following the |
| allergy sufferers. They have proved to remove | | | | three mechanisms: |
| 99.97% of the allergens that pass through from | | | | - Interception: particles follow a line of flow in the |
| carpets and furniture. | | | | air stream and come within one radius of a fiber |
| The most common airborne particles are about | | | | and adhere to it. |
| 2.4 microns. The average vacuum cleaner only | | | | - Impaction: larger particles are unable to avoid |
| vacuums up particles from 30 to 50 microns in | | | | fibers by following the curving contours of the air |
| size. The.3 microns in size are the most harmful | | | | stream. These particles are forced to embed in |
| sized particulates. The HEPA Filter vacuum cleaner | | | | one of them directly. |
| has special filters made of glass that are formed | | | | - Diffusion: This is an enhancing mechanism as a |
| into paper filters and sealed. They trap mold, dust, | | | | result of the collision with gas molecules by the |
| dust mites, skin flakes and other pollutants from | | | | smallest particles. |
| your carpet and upholstery. A HEPA filter vacuum | | | | One important consideration when buying a HEPA |
| will clean up those allergens and dust which have | | | | filter vacuum is the size of your home. We have |
| settled on floors and in carpets. In many cases | | | | a preference for a mid size vacuum cleaner which |
| the vacuums are designed as a closed system so | | | | will effectively handle needs of most people with |
| that once allergens are contained within the | | | | average sized homes. On the other hand, a full |
| vacuum and do not escape back out in the room | | | | size canister vacuum may be more appropriate |
| from air leaks within the hoses or chambers. | | | | for a very large house. |
| The original HEPA filter was designed in the 1940's | | | | If you are an asthma sufferer, it is advisable to |
| and was used in the Manhattan Project. This was | | | | have less carpeting or switch completely to |
| done to prevent the spread of airborne | | | | hardwood floors. But in case you still have |
| radioactive contaminants. The HEPA filter rating is | | | | carpeting in your room, you need to choose the |
| applicable to any highly efficient air filter. This filter | | | | right vacuum cleaner to keep your room clean |
| should be able to attain the same filter efficiency | | | | and free of allergens. The HEPA vacuum cleaner |
| performance standards as a minimum. | | | | ensures that the air coming out of your vacuum |
| With the introduction of HEPA filter vacuums, the | | | | does not reintroduce pollen and dust mites back |
| technology has got even better. Most vacuum | | | | into the air and room. Your allergies at home can |
| manufacturers have acknowledged the positive | | | | be alleviated with regular cleaning with a HEPA |
| impact of HEPA vacuum cleaners. Every year | | | | vacuum cleaner. |