What if half of your building does not have air conditioning?Ultra violet light for school and businesses
One approach to battling such airborne-spread of coronavirus that’s capturing attention is a century-old technology, known as germicidal ultraviolet air disinfection, or GUV, that zaps harmful airborne germs. In modern use, the lights are tucked inside air conditioning systems or mounted high above people’s heads near ceiling fans that draw the air up so the lights can disarm the germs.
https://www.msn.com/en-us/health/me...oronavirus-in-schools-and-offices/ar-BB17dv5m
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