Does cold air kill germs in house? Cold air does not kill germs. The cold can actually make it easier for viruses to spread, since most viruses are covered by a protective capsule that melts in the heat. Cold air can also dry our nasal passages, which leaves sinuses vulnerable to infection from viruses.
What kills germs hot or cold air? Air temperature is key for bacteria. In general, cold air kills germs while warm air incubates them.
How cold does a room have to be to kill bacteria? Dermatologist Alok Vij shares in a Cleveland Clinic article that you need to reach a temperature of 80 degrees below freezing or even colder to actually kill bacteria and other germs.
What temperature kills bacteria in the air? Bacteria will not multiply but may start to die between 140 and 165 degrees. Bacteria will die at temperatures above 212 degrees.