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A report published in 2021 by the United States Environmental Protection Agency states that indoor air pollution is about two to five times worse than outdoor pollution. This means that indoor air can contain five times more pollutants like mold, pesticides and particles than outdoor air. Your indoor air may contain allergens such as dust, pet dandruff and pollen. Finding a device that removes these contaminants and allergens is a practical and healthy choice. A Air purifier A perfect device for situations. Since we need to spend more time indoors for the Kovid-19 epidemic, it is best to breathe in the fresh air while you are indoors. Here we will discuss How Air Purifiers Work And why are they useful?
What is an air purifier?
An air purifier is an indoor device that traps and filters harmful particles and finally releases fresh and clean air. These devices can limit the spread of harmful particles and allergens to prevent respiratory diseases or allergies. The device can be used in offices, homes, learning centers and hospitals to purify the air in these spaces.
How Different types of air purifiers Work?
There are four different types Air purifier Which are available in the market including – HEPA filter, activated carbon filter, ionizer, UV light. Here we will discuss how each type of air purifier works:
HEPA filter air purifier – HEPA sucks air into an air purifier device with a filter and passes through the filter using an internal fan. When they pass through the filter, airborne contaminants get trapped inside the dense material and clean air flows from the other side. A HEPA filter can capture fine pollutants measuring 0.3 microns in size, including dust, pollen, mold and some bacteria. This makes it the most popular filter among all.
Activated carbon air purifier – An air purifier that uses an activated carbon filter that works in the same way as an HEPA filter air purifier. These air purifiers draw air through filters to prevent pollutants and allergens. The primary difference between these two types of purifiers is the materials used in the filter. Activated carbon is a specially treated material that has high porosity and can absorb pollutants as air passes through it.
Ionizer air purifier – An ionizer air purifier does not use any filter to clean the air around. These air purifiers emit negatively charged ions which combine with airborne particles to thicken them. Dense particles become too heavy to move freely in the air and fall to the ground or other surfaces. The disadvantage of this type of air purifier is that the contaminants are still indoors until you clean them.
UV light air purifier – Air purifiers with ultraviolet (UV) properties use short-wave UV-C light to kill airborne germs such as bacteria and viruses. It uses a disinfection method called ultraviolet germicidal irradiation (UVGI). In this method, when air is forced through the device, it passes a UV lamp that directly tries to disinfect the air.
Importance of air purifier
Everyone needs fresh indoor air and those who suffer from respiratory problems like allergies and asthma have good reason to buy one. Improved air quality in frequently used spaces such as offices, homes, schools and even cars can help reduce allergy and asthma triggers.
In addition, modern buildings are designed to be more energy-efficient and are usually sealed to meet requirements. In such cases, air circulation is compromised and contaminants can be trapped inside the house. Air purifiers can also act as artificial ventilation for modern homes.
Some buildings come in contact with various contaminants ranging from vehicle exhaust, construction contaminants, fresh paint. Air purifiers can filter out all these harmful particles from the indoor air of your home if you live in such buildings.
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