Nowadays more and more families purchase air purifiers due to the bad air quality. An air purifier is a device that removes pollutants from the indoor air and improves the indoor air quality. These devices are beneficial to people with allergies and asthma and are commonly marketed to reduce or eliminate second-hand smoking.
What is the general operating principle of an air purifier?
Indoor air purifiers filter indoor and outdoor air. They will capture the polluted air and release decontaminated air.
You need to distinguish between professional models and appliances as they do not guarantee the same overall performance for air treatment. Professional air purifiers with HEPA 13 or 14 filter are effective against pollen, PM2.5 and PM10 particulates, VOC-type pollutants, viruses, and pollutants.
The common 5 Types of Air Purifiers
1. Ultraviolet Air Purifiers
Ultraviolet (UV) air purifiers use ultraviolet light to remove potentially harmful viruses, bacteria, and pathogens from your home. The inspiration for UV air purifiers came from hospitals that use special UV bulbs to disinfect hospital rooms and laboratories. A small and compact machine that filters the air in your home through a chamber filled with UV light. Ultraviolet light destroys pathogens by breaking the breaking molecular bonds in their DNA.
2. HEPA Air Purifiers
HEPA air purifiers can theoretically remove at least 99.97% of dust, pollen, mold, bacteria, and any airborne particles with a size of 0.3 microns (µm).. In short, HEPA air purifiers are very effective at removing particles such as pollen, dander, mold and dust from the air
3. Activated Carbon Air Purifier
The activated carbon filter consists of small bits of carbon that have been processed to be extremely porous, which are effective in removing smoke, odors, smoke and gases from the air in your home. People who are sensitive to odors such as smoke and natural gas should consider an activated carbon air purifier.
4. Ionic Air Purifiers
The ionic air purifier is very quiet and can be operated without a motor. They release negative ions into the air and these ions combine with positively charged airborne particles (such as dust), making these particles very heavy and eventually falling out of the air. Some ionic air cleaners have electrostatic precipitators, which can trap positively charged particles on the metal plate inside the air purifier.
5. Electronic Air Cleaners
The Electronic Air Purifier is a whole house solution that can be used in conjunction with your air conditioner to use static electricity to charge and trap airborne particles.
Electronic air purifiers use HEPA filters and positively charged ions to remove up to 99.98% of allergens from the air in the home. They use HEPA filters in combination with heating and cooling systems to purify the air throughout the home. Essentially, an electronic air purifier ensures that the air flowing through your HVAC system also passes through the HEPA filter, which can capture particles as small as 0.3 microns. Then the positively charged ions generated by the electronic air purifier remove all remaining impurities.