[COVID-19] Air Purifier Guide for Schools
Face-to-face classes are going to resume soon. To prevent the spread of infectious diseases in schools, schools and educational institutions have to strengthen the disinfection work and get some air purifiers to provide an added layer of protection to the school campus. Here is a buying guide for you to choose the best air purifier.
Four types of air purifiers
There are many kinds of air purifiers on the market, and the underlying technologies in air purifierrs can be broadly fell into four categories.
Filtration: Filters can be used to trap the suspended particles in the air. The examples of air filters commonly found on the market include washable pre-filter, activated carbon filter, and high-efficiency filter (HEPA filter).
Ultraviolet disinfection: The shorter the ultraviolet wavelength, the stronger the energy. It is effective to sterilise with UV-C wavelength (254nm light) to kill bacteria and viruses.
Photocatalytic sterilisation: Photocatalysts can decompose many harmful gases and kill bacteria with a specific wavelength UV lamp.
Negative ions purification: Negative ions can combine with positive electrodes in the air and change the structure of the molecules to achieve a purification effect.
Factors to consider when choosing an air purifier
The air purifier you select must be equipped with purification and sterilisation functions to ensure that your purpose is served. Here are some important factors for you to consider.
- Clean Air Delivery Rate (CADR)
- CADR is developed by the Association of Home Appliance Manufacturers. The higher the rating, the more efficient the filter is, therefore, the Consumer Council advises consumers to consider the CADR before purchasing an air purifier.
- To protect the campus environment, you are advised to choose the ideal air purifier for purifying smoke, dust, and pollen. It would be better if it can also remove formaldehyde and molds.
Disinfection and sterilisation effect
- Make sure the air cleaner can trap and eliminate the viruses. If the air purifier can only trap the droplets and viruses but not eliminating them, it might increase the risk of infection.
AG+ Pro Silver Ion UV-C Air Purifier (NSP-PCO)
Combined with pre-filter, nano-crystalline filter, UV-C lamp, plasma sterilisation and the patented AG+ high efficiency silver Ion antiviral filter.
What’s more, the Aurabeat air purifier would not release any disinfection spray or chemical by-products while purifying, which can safely maintain the air quality on the campus.