An air purifier is a device used to free air from contaminants, such as dust, smoke, gas, pollen and mold. Most air purifiers also remove harmful bacteria and viruses from the air. Various methods are used to clean air from various indoor allergens. This includes air purifier filters , adsorbents like charcoal, and electrostatic charges. Various air purifiers can be most beneficial for people who suffer from allergies, asthma, chronic obstructive pulmonary disease and other respiratory disorders.
Air purifier types
There are various kinds of air purifiers: ionic air purifiers , HEPA air purifers , HEGA and ultraviolet light air purifiers. These differ from one another according to different techniques used in clearing the air. There are also room, home and commercial air purifiers, and these differ according to air purifier size and area coverage. Many different companies claim to have the most efficient air purifiers. However, there is some controversy specifically involving ionic air purifiers. This is mostly due to a questionable effect of negative ion generators. Ionic air purifier technology is based on releasing charged particles which then attach to smaller indoor allergens in the air to create larger particles. They are then cleared from the air.
Another type of air purifier is the HEPA air purifier . HEPA is an abbreviation for “high efficiency particulate air”. Companies must fulfill high HEPA requirements. A HEPA air purifier can clear from the air at least 99.97% of any particles with a size of 0.3 micrometers or larger. The first HEPA air purifier was constructed in the 1940s to protect against radioactive pollution. It was introduced into sales in the 1950s and became an officially registered trademark for very effective air filters. Nowadays HEPA air purifiers use photo-catalytic oxidation technology to remove airborne particles from the environment. They are widely used in the home as air purifiers to get rid of allergens in the air. They are also more than ideal to remove room odor. One should know that “HEPA type” air purifiers are those that did not meet the HEPA requirements. There is another type of air purifier, the HEGA filter. HEGA stands for “high efficiency gas absorption”. The HEGA filter was first designed by British military to defend against chemical warfare. A carbon cloth filter is used in HEGA air purifiers, hence it has become popular in residential air purifiers.
Ultraviolet light used in air purifiers eliminates organic compounds, such as harmful bacteria and viruses, in the air. They also are perfect to remove odors. They are all portable, but are larger than ionic air purifiers. Home purifiers are designed especially for home use. They can be used in a single room area or cover the whole household. They eliminate dust and remove pollen and mold spores. They are also useful for eliminating gaseous contaminants, purifying smoke, and reducing odors. They are small, portable and very easy to use.
Room air purifiers are similar to home purifiers but they are smaller and used for smaller coverage areas. Room air purifiers are a good option for bathrooms, bedrooms, kitchens, and living rooms. The technique used in room air purifiers is similar to that used in home air purifiers. Commercial air purifiers are constructed for large commercial areas and greater pollution zones. They are an ideal option for shopping malls, hospitals, bars, and clubs to clear the area of gaseous contaminants, cigarette smoke, and dust. They are also used for organic contamination. Air purifiers are designed for private and commercial purposes. They are indispensable for people who suffer from allergies and other respiratory diseases. They are also indispensable for bars, cafes and night clubs, where air purifiers are used in order to eliminate cigarette smoke. In conclusion, there are various types of air purifiers, each used to accomplish different purposes.