How to buy the air disinfection machine under the epidemic

Definition and qualification standard of air disinfection

1. The definition of air disinfection: the process of killing or removing pathogenic microorganisms in the air.

2. Qualified standard for disinfection: after disinfection, microorganisms in the air should be equal to or less than the national standard. If the artificial contamination of microorganisms can be reduced by 99.9% or 90% of the natural microorganisms, it is qualified for disinfection.

3. The air disinfection machine also needs the state according to the disinfection product management, need to obtain the "disinfection product production enterprise health license", need to be on the website designated by the health supervision department for the record.

Two, air disinfection machine applicable occasions and qualified standards

The air disinfection machine is generally used in the second and third class environment of the hospital, and can also be used in the high-risk department of the hospital. Among them,

The total number of bacteria in the air of high-risk departments is required to be no more than 10CFU /m3, no more than 150CFU /m3 and no more than 500CFU /m3 in the second-class ambient air of hospitals. The total number of bacteria in the air of schools, kindergartens and other civil places should be no more than 500cfu/m3. In this way, the risk of airborne microbes such as bacteria (including viruses) catching diseases is greatly reduced.

Three, the purchase of air disinfection machine note

1. looking for qualified manufacturers to buy, is very key!!

2. large air volume: large air volume is related to the number of air changes, the number of air changes is related to the rate of purification of pollutants. Practice has proved that the number of ventilation to meet the disinfection requirements should be more than 8 times/hour.

3. Low noise: noise is the most differentiated indicator of air purifier and air disinfection machine at present. Especially for products with large air volume, noise may be the most important indicator to judge the overall level of the product. The maximum noise of the national standard of air purifier is 70dB (A), and the maximum noise of the standard of air disinfection machine is 60dB (A).

4. disinfection qualified air purifier for other bacteria (including viruses) are effective. Air disinfection machine or air purifier to do the virus test, do not meet the disinfection standards, there is no relevant international and domestic standards, so it is not necessary.