Knowing More on HEPA Filter-Vacuum Cleaners
During World War II, when highly classified companies where dealing with radioactive materials, they introduced High Efficiency Particulate Air (HEPA) filters were invented to prevent these harmful radioactive particles from escaping in laboratories. Made up of a mesh of fiberglass fibers that are randomly arranged, the HEPA filter traps large particles including the microscopic ones. The efficacy of HEPA filters has been not just in air filtration systems, but more so in the technology of vacuum cleaners.
One of the benefits of the HEPA filter vacuum cleaner is that the indoor air quality is greatly improved due to the filtering efficacy of HEPA filter which can eliminate element-causing allergy and asthma.
In comparison between the conventional vacuum filters to HEPA filters, the conventional vacuum filters perform as a sieve and small size particles that are much smaller than the sieve’s diameter opening can pass through it, while with HEPA filters, they are designed to trap the smallest pollutants when air is forced through the fiberglass mesh, thereby, isolating the particles that will cling to the individual fibers. The design effectiveness of the HEPA filter is such that it can remove 99.97% of all particles greater than 0.3 microns, so dust mites which is of 5 microns size and human hair of 40 micron size are basically trapped in the HEPA mesh and it just complies better to the government standards require that particle size with an equivalent to one-thousandth of a millimeter must be filtered out of the vacuum’s exhaust.
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Due to the fact that there is an increase spread of fake or imitation HEPA filter vacuum cleaners in the market, one must be extra cautious in purchasing HEPA filter vacuum cleaner, so these are guidelines for you to observe and check, when you plan to buy a HEPA filter vacuum cleaner: genuine HEPA filters must pass through government standard test and the test results are printed on the filter itself, including the MERV (Minimum Efficiency Reporting Value) rating, which is an evaluation system that rates a filter’s ability to remove particles from the air based on a scale of 1-20, to which the higher the rating the higher the ability of the filter to remove smaller particles.
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It is also important that the HEPA filtering unit must be 100% sealed so that there is no air flow around the filter, and in doing so the effectiveness of the HEPA filtration system can be achieved, which prevents large amounts of particles from re-entering the surrounding air. When another batch of dust particles return through the air flow, the HEPA filters can still trap these particles, thus preventing fewer microbe dust fragments from escaping in the exhaust.
The HEPA filter vacuum cleaner has proven its worth by preventing the emission of very minute impurities and other contaminants, like dust, smoke, mold, bacteria, and pollen, back into the air we breathe, and, therefore, this vacuum cleaner is beneficial in the home and office.