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The air filter mainly filters those substances in the air

Oct 23, 2019

Many people will ask what is the use of the air filter, and did not grind to purify something? In fact, air filter are still very important in life, it can remove many impurities harmful to the human body. The following is a description of the air filter that mainly filters the substances in the air:

 

First, remove inhalable particles

Air filter purification requirements continue to improve, it is also constantly improving it, indoors to remove particulate matter, its particle size of 0.5 microns to 10 microns of dust, smoke and other substances. Domestic and other countries are based on a concentration of 0.15 micrometers per cubic meter, and some standards can reach 0.068 milligrams per cubic meter. Some industries need these cleanliness standards. This is the hospital, pharmaceutical, electronics, and critical care patients. , treatment, rehabilitation, collection of cultural relics, preservation and computer operation room, food and other industries, with 100, 10,000, 100,000.

Second, remove the total number of microorganisms in the air

1, calculation unit: cfu / m3

2, removal of microbial standards in the air: in these environments, such as the operating room of the hospital, intensive care unit, air filter control below 190cfu / m3; door, emergency room required to control below 440cfu / m3; public places, such as hotels, Entertainment halls, beauty salons, etc. must be controlled below 1400 cfu / m3 --3900 cfu / m3.

Third, remove gaseous impurities

Classification: carbon monoxide, formaldehyde, ozone, etc. Let's take a look at these indicators and use professional testing equipment: carbon monoxide is required to be controlled within 4.99 mg/m3, formaldehyde is required to be controlled within 0.18 mg/m3, and indoor air monitoring is performed regularly to establish a professional responsible group. Monitoring of air, maintenance of equipment, etc.


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