The air purifier, also known as an air filter, is a device used to remove pollutants and other particles from the air in a given area. Air purifiers come in a variety of styles and sizes, from small personal units that fit on a desk or tabletop to larger commercial units used in factories and other large spaces. Air purifiers have become increasingly popular in recent years, with consumers citing allergies, asthma, and other health problems as reasons for using them.
Air purifiers work by using a variety of different methods to filter the air, including HEPA filtration, electrostatic precipitation, ultraviolet germicidal irradiation, and activated carbon adsorption. Many air purifiers can also take in additional airborne particles, such as dust and pet dander, so that these allergens can be trapped and removed from the air. This helps improve air quality and reduce the number of allergens and other particles that can irritate people with sensitive allergies and respiratory problems.
HEPA filtration is a type of filter used in many air purifiers. HEPA stands for High Efficiency Particulate Air and is made up of fibers made of a glass-like material that trap particles as small as 0.3 microns, which is about one-third of the diameter of a human hair. HEPA filters can trap up to 99.97% of particles suspended in the air.
Electrostatic precipitation works by using a process of ionization to charge the particles suspended in the air with negative or positive ions. As the particles become charged, they are attracted to an oppositely charged collector plate and are then trapped in a collection plate.
Ultraviolet germicidal irradiation is a process in which ultraviolet light is used to kill airborne germs and bacteria. This type of air purification works by using ultraviolet light to break down the cells of microbes and germs, effectively destroying them.
Activated carbon is a type of filter that works by adsorbing particles in the air. The activated carbon is made up of porous carbon molecules that trap particles, removing them from the air.
When choosing an air purifier, it is important to consider the size of the space being treated as well as the type of pollutants that need to be removed. It is also important to consider the amount of maintenance required, as some air purifiers may need filters to be changed more often. Once an air purifier is selected, regular maintenance is important to ensure it is working properly and properly filtering the air.
