With increasein air pollution across the globe, people are becoming more concerned about the air they inhale. In order to purify the air present in the surrounding an air purifier is used.It is anappliance which is used to remove the dirt present in the air. Such type of devices are usually manufacturedas they are helpful to people suffering from asthma and allergy. Air purifiers also helps in removing tobacco smoke present in the atmosphere. For commercial purposes, air purifiers are developed as large units or stand-alone units that can be easily attachedwith an HVAC unit or with air handler unit found in commercial and industrial sectors. They are also used in numerous industries to remove any type of impurities such as carbon dioxide from air before processing. Usually, pressure swing adsorption techniques are used to carry out filtration process.
Generally, air purification methods are used to improve the quality of indoor air in home, especially for people sufferingfrom cardiopulmonary ailments. Cooking, candle lighting, and cleaning all contribute pollutants in home. Well-ventilated home has large number of pollutants as they enter with outdoor air. Hospitals also has high application of air purifiers, as air is easily prone to contagions and bacteria.Air purification methods generally rely on electronic ionizers or high efficiency particulate air (HEPA) filters. These filters allow negligible amount of particulates to pass through submicron glass fibers.
Electronic ionizers removescontaminants from air by changing the polarity of ions from positive to negative. Majority of the negative ions are attracted to the pollutant particles that group together and fall on the ground owing to their increased mass thereby making the air clean and free from any impurities. Electronic ionizer’sworks on the same phenomenon as that of outdoor air purification methods caused by waterfalls, ocean waves, lightning, and mountain climates. Ozone is produced as a byproduct in electronic ionizers and thus has a limited application. However, lamps and rock salt candles are a pureform for ionizing.
Ultraviolet germicidal irradiation (UVGI) is also one of the methods to purify air. UVGI is used to purify air that crosses UV lamps through forced air. These type of systems are generally freestanding units equipped with shielded UV lamps. Other type of systems are also installed in forced air systems so that the circulation of air moves micro-organisms through the lamps. Through this sterilization system, micro-organisms are easily removed from the surrounding air.
Generally, methods used for air purification in indoor environments are powerful.TiO2 air purification systems are approved by FDA to be used in hospitals, in order to reduce fungi and airborne bacteria. Air purification lamps coated with titanium irradiate air as it passes through the chamber. Some companies have been using this technology to create special type of TiO2 light bulbs that can be installed anywhere. These companies are promoting TiO2 lamps as an energy-efficient method for the complete removal of smoke, bacteria and airborne pathogens from the surrounding.
Some of the key drivers of the air purification system market are increasing awareness among people and large number of respiratory diseases arisingfrom air pollution. High cost of the air purification systems can hamper the growth of the market. Advancements in technology brings new opportunities for the air purification systems market.
Some of the key companies in the business of air purification systems are CAMFIL INDIA, HealthWay Home Products, Inc., Good Life, Inc., Keller USA, Inc., IQAir North America, Inc., Philips Electronics N.V., Air Filtratation Systems, Ameripure Technologies, Abatement Technologies, Inc., Sentry Air Systems, Inc. and Electrocorp.
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