Everyone is aware of the three basic safety measures to prevent Coronavirus so far – wearing a mask, physical distancing, and washing hands. But with the weather getting colder in some areas, another measure that many may overlook should be added, which is to ventilate the rooms.
Poorly ventilated rooms increase the likelihood of transmission through aerosols suspended in the air, says medical specialist Emil Reisinger from Rostock, Germany.
“In addition to the spray, the much smaller aerosol is a major vector for Coronavirus, albeit to a lesser extent,” says Riesinger.
As heavy droplets fall rapidly on the floor, lighter aerosols can float in the air for a longer period of time – and thus disperse in closed rooms.
Doctors say fears of catching a cold from opening windows and being too cold in a room are unfounded.
And if the rooms are properly ventilated, then one should not be afraid of catching a cold. “Venting a room for just a few minutes doesn’t change the temperature,” says Riesinger. Objects and walls in the room retain the temperature, and they will release the stored heat.
The German Institute for Occupational Safety and Health recommends that rooms be ventilated for three to ten minutes at a time, depending on how long people sit together, and for meeting rooms, they must be ventilated for 20 minutes, and in offices they must be ventilated for one hour.
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