HEPA filters were invented by the US government during WWII to prevent radioactive particles from escaping from military and scientific labs. However in modern society, they have been widely used in our daily life. They are used in a variety of critical filtration applications, including those in nuclear, electronic, aerospace, pharmaceutical and medical fields. Here is a beirf introduction about HEPA features.
First and foremost, HEPA filter has a high working efficiency. The HEPA filter can remove close 99% of unwanted elements that is not done by any other filter machine. This is possible because of the mat in filter. It does not recirculate the polluted air like done by normal vacuum cleaner. Compartment where the filter is contained can be removed from the air purifier unit and either sprayed down or submerged into soapy water. Being able to clean the HEPA filter is an advantage to users because they are then washing away the very irritants that cause their allergies to become irritated.
Different indoor environments have different air cleaning needs. HEPA filter has custom designed specific Air Purifier models to target specific groups of air pollutants. This approach maximizes effectiveness and minimizes cost. While HEPA is extremely effective at removing particulate contaminants, it is not the best choice for removing smoke, odors, and chemical contaminants. This is why the manufacturers of higher-end HEPA filters add secondary filtration with activated carbon. We highly recommend a combination air purifier that uses both HEPA and activated carbon, for almost all general home air purification tasks. HEPA features should be taken into consideration when you want to buy HEPA filter.
In a general way, HEPA filter was individually tested to ensure that its performance meets its strict specifications. The results of the tests are detailed in a hand-signed Certificate of Performance. In addition, most HEPA filter has noise reduction settings. The double-walled housing effectively reduces sound transmission. Rubber suspension pads systematically isolate motor vibration from the air cleaner housing. The result is an air purifier quiet enough for even the most noise sensitive environments. Fan noise problems are limited through the use of multi-speed settings that are available on most models. We recommend that you select a Hepa filter H14 that has several fan speed options so you can turn the unit down to a very quiet setting at night when you sleep and can turn it up during the day to increase the air processing rate.
HEPA features are more than these as stated above. If you are in need of HEPA filter, you can visit www.hefilter.com for further information.
