Most industrial types of air purifiers are little stand-alone units developed for little offices or for use in your residence. There are also larger air purifiers that can be connected to an AHU (air managing unit) or to an HVAC (Heating ventilation and a/c) which are generally made use of in larger areas for industrial, industrial or clinical areas.
There are several different means exactly how air purifiers clean the air. http://airpurifier-reviewhq.com/air-filter Each process has differing efficiency that eliminates different type of contaminants. The good thing about air purifiers is that you can have different processes in one unit, thus you gain all the benefits in different processes.
The simplest process is through filtering. With the use of fans, air is compelled to travel through a filter that traps contaminants. The down side to this process is that smaller sized particles can travel through the filter. There is a more advance filter and that is the High-efficiency particulate air filter or HEPA filter. The HEPA filters eliminate as much as 99.97 % of particles larger than 0.3 micrometer.
Air filtration ultraviolet germicidal irradiation systems utilize ultraviolet light to clean the air by cleaning the bacteria that goes through the Ultraviolet light. This is done by forcing infected air to pass an ultraviolet light with the use of fans, the dead bacteria is dead strained leaving a clean bacteria complimentary air for you to safely breathe.
There are also air purifiers that utilize triggered carbon which absorbs unstable chemicals. The absorption is done on the molecular level. However this process does not eliminate larger particles. The primary use of using triggered carbon is that it alters contaminants from gaseous state into solid states. This process is normally made use of with another filtration process.
Ionizer purifiers utilize charged electrical materials that are formed into flat surfaces or needles; these create electrically charged gas ions. These ions will attach to contaminants that are normally solid airborne particles. These are gathered by the use of electrostatic in a charged plate. Although this process is really reliable, it produces ozone and other types of oxidants as by-products. So ionizer purifiers must only produce as much as 0.05 ppm (particles per micrometer) of ozone to pass the industrial safety standards.