Types of Air Purifiers and Its Functions
Air purifiers are devices designed to clean circulating air by getting rid of contaminants and impurities in the air. Inside the air purifier are special filters, known as HEPA (high efficiency particulate air) filters, which clear the air by separating pollutants and impurities, like dust, pollen, pet dander, smoke, etc.
Since air pollution has tremendously increased due to the rise of the carbon dioxide levels in the atmosphere, many related health issues have also been experienced, like allergies and asthma, such that in the US alone around 50 million Americans are directly affected by these health constraints, and, with that, concerns as to how to improve the indoor air quality are becoming a sought-after solution. Leading the pack in the advancements for cleaner air are air purifiers.
The vicious irritation in the lungs caused by air impurities, like smoke, mold spores, pollen, bacteria, viruses, pet dander, and pollutants, can lead in due course to the lowering of the immune system. Since these irritants cannot be seen by the naked eye, manufacturers have come up with measures to remove these by using filters, electric attraction or ozone.
Where To Start with Systems and More
Since the naked eye cannot see anything smaller than 10 microns, a standard unit for measuring air particles, air purifiers make use of HEPA filters or sieves that can trap 99.9% airborne particles that are larger than 0.3 microns. The capability of filtering airborne articles by room air conditioners is just 10 microns and above. The effectiveness of air purifier’s with HEPA filters, with respect to the room size, is such that the more times the air passes through the filters, the cleaner the air becomes. High graded air purifiers which have HEPA filters and 15 lbs of activated carbon or zeolite blends can effectively service 6 times air exchanges per hour and, at the same time, adsorb chemicals and odors that are inside the room. Some top-of-the-line brands of air purifiers have also ultra-violet light system which prevents the entry of viruses, bacteria, and fungi into the air purifier.
Why People Think Purifiers Are A Good Idea
Another technology utilized by air purifiers to trap airborne particles is through electrical attraction, to which there are three types: electrostatic precipitating cleaners, electret filters, and negative ion generators.
Another efficient alternative for the costly replacement of HEPA filters is the electrostatic precipitating cleaners or better known as electronic air purifiers, which operate by drawing in air particles through a fan and charging them with a series of high-voltage wires.
Another type of air purifiers makes use of electret filters which are actually special synthetic fibers that can create static charges which can attract air particles. This type of filter come as plain, pleated, disposable or reusable and must be replaced when fully used.
With negative ion generators, in it are tiny, charged wires or needles which produce gas molecules with negative charges or ions so that any airborne particles that enter the purifier immediately adhere to these negative ions and are collected in the filter.
Ozone generators use high voltage electrical currents to convert oxygen to ozone, which acts as a powerful oxidant, breaking down the molecules and microorganisms in the air.