What is HEPA rating?

HEPA rating is a command indicating a minimum percentage of a specific size particle that the filter is able to capture. HEPA is an abbreviation for highly efficient air filter particles; In order to obtain this designation, the filter must have a specific minimum rating to qualify. In order to be considered a real HEPA filter, the device must be able to capture at least 99.97% of the particles with a size of 0.3 microns (micrometers) that enter the filter system. This HEPA assessment is expressed as a minimum efficiency of 99.97%, although some filters have an even higher efficiency evaluation.

HEPA filters are used in many air cleaning applications to protect health and safety. These applications include aircraft cabins, hospitals, laboratories and many other public and private facilities. They are also used in several vacuum models. It should be noted that many vacuum states that they have a "HEPA filter", which is not really a filter with a real HEPA rating.

HEPAGED FILTERSThey are designed to capture particles in the air that are so small that they cannot be seen, but can pose a risk to health and safety. Some examples of these particles include allergens, bacteria and smoke. Because these particles may have a negative impact on health, HEPA filters are very beneficial.

HEPA evaluation partly depends on the size of the particles that the filter is able to capture. HEPA filters must be able to capture the stunning majority of particles as small as 0.3 microns. One micron equals a thousandth of a centimeter, millions of meters (0.000001 m) or 1/24 500 inches; It is approximately 100 times smaller than the diameter of one strand of human hair. These particles are microscopic and cannot be seen without the help of the human eye.

HEPA assessment filters must be able to ensure consistent power on the minimum efficiency of 99.7% of air particles measures 0.3 microns in diameter.Some ultra-hepa filters have a minimum efficiency of 99.999 percent, which exceeds the necessary evaluation. These minimum evaluation standards were set by the US Energy and have a global acceptance. The European Union uses different terminology for evaluation, but standards are similar. The EU refers to filters with a minimum efficiency of 99.75% as "HEPA class H13" and those at 99.975 percent are referred to as "HEPA class H14".