At present the air of entire North India including Delhi-NCR has become poisonous. The situation is such that the Air Quality Index (AQI) has gone above 500 points. From schools, colleges to offices have been shifted back to work from home and the demand for air purifiers for living in homes has also increased. After all, how does an air purifier work, what technology is used in it, which makes the air of the house pollution free.
If we understand the working of air purifier in simple language, it works on suction and blow technology. You can also understand this from the way the exhaust fan installed in the kitchen of your house works. Just one thing makes it different from normal exhaust fans. That is its filters and its mechanism, let us understand about it…
There is a suction fan inside air purifiers, which sucks the polluted air present in your house. This fan is connected with different filters, due to which the germs, polluting particles etc. present in the air are cleaned even before they come near the fan. When this clean air reaches the fan, it releases it into the room.
In this way this process repeats for some time. Repeatedly the polluted air passes through the filters and enters the purifier, in its place clean air is released. Then in the end only clean air remains in the room.
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The most important thing for an air purifier is the HEPA filter. It is also effective in capturing particles like PM 2.5 present in the air. It captures 99% of the particles present in the air including dust and hair of pets living in the house.
The efficiency of HEPA filter is quite high. It contains a very good quality fine mash. Apart from this, it has many layers, in which a layer made of glass is also present. The layer made of glass is fine, like the one in the silencer of vehicles. HEPA Filter is also used in vacuum cleaners.
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Apart from HEPA filters, air purifiers have carbon filters which absorb chemicals and odors present in the air. Apart from this, there is UV light, which kills bacteria. Negative ionization is also used in this, which attracts the charged particles present in the air towards itself. In this way the air in your house becomes purified.
