What is the antibacterial and sterilization test of the air purifier used for?

In spring, the temperature is warmer, the weather is humid, and bacteria are active. Manufacturers are highly concerned about the "sterilization" type air purifier. Because the sterilization performance is good or not, it is also related to the sales volume of the product, and even the products that do not meet the standards will be removed from the shelves. How to test the antibacterial and sterilization performance of the air purifier?

Air purifier sterilization test contains air natural bacteria and Staphylococcus albus or other applicable non-pathogenic microorganisms (Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Klebsiella pneumoniae, etc.)

In the "GB/T 18801-2015 Air Purifier" standard, it is also clearly stipulated that its antibacterial and sterilization test, antibacterial and sterilization performance test are required. The main tools used are:

1. Antibacterial and sterilization performance test chamber (Model: HYKJ-20)

2. Air purifiers tested

3. Microorganisms that meet the relevant regulations of GB 21551.3-2010

4. Ambient temperature: 20℃~25℃

5. Ambient humidity: 50%~70% RH

In the test, the microorganisms need to be cultured first, and then sprayed with bacterial spray in the antibacterial and sterilization performance test chamber, and stirred evenly. At this time, the air purifier placed inside can be turned on. The operating air purifier can detect the efficiency of antibacterial and sterilization, and through the specified calculation method, it can be detected whether the antibacterial and sterilization function meets the requirements.