#DYK?: Recirculating indoor air can increase the spread of the virus that causes #COVID19. Good ventilation protects you from infection. Bring fresh, outdoor air inside and let indoor air outside when using fans, air conditioners and filters ⬇️
#DYK?: Recirculating indoor air can increase the spread of the virus that causes #COVID19. Good ventilation protects you from infection. Bring fresh, outdoor air inside and let indoor air outside when using fans, air conditioners and filters ⬇️