HEPA is an acronym for "high efficiency particulate air". Air Purifier HEPA Filters have been widely used in modern society. Many people benefits from HEPA filter which is a type of filter that can trap a large amount of very small particles from air. Many families equipped with HEPA filters because it can trap small particles that may cause problems for allergy sufferers and others with health problems. The HEPA filter functions are too many to list out. What follows are some main functions of HEPA filter.
Speaking of HEPA filter functions, you'd better the working principle of HEPA filter. HEPA filters are composed of randomly arranged fibers that help trap tiny particles while still allowing airflow. Although the spaces between the fibers in HEPA filters commonly measure larger than 0.3 micrometers, these types of filters use other methods to help filter the air. The working principle of Gel Seal Hepa Filter can be concluded in to three periods. The first step is called impaction – the physical capture of larger particles that are unable to pass through the filter. Impaction increases as fiber density and air velocity increase.
What follows is the second step is interception – airborne particles following the flow of air come close enough to a fiber and are attracted to it. In this instance they do not have to touch the fiber first in order to become attracted and adhere to the fiber. The last step is diffusion – the collision of tiny particles (usually measuring less than 0.1 micrometer) with gas molecules, impeding their path through the HEPA filter. This slow path increases the possibility of the particle being captured by either impaction or interception.
About the HEPA filter functions, HEPA filters are used today in many different industries. Nuclear facilities require high standards of air filtration and only HEPA filters are used. The same goes for hospitals that commonly pair high-grade HEPA filters with ultraviolet lights to help filter out and kill airborne viruses and bacteria. Even some household vacuums have HEPA filters to help reduce the amount of allergens circulated back into the air. Last but not least, you have to bury this in mind that it is important to note that HEPA filters are designed to arrest very fine particles effectively, but they do not filter out gasses and odor molecules. If you are in need of HEPA filter, you can directly visit www.hefilter.com for further information.
