Keep in mind that properly vented ventilation fans also suck a lot of heated air out of your house. A remedy is to install a heat-exchange ventilator fan. These fans use warm, outgoing air to heat cooler, incoming replacement air.
The size of a typical bacterial cell is 0.5-5.0 micrometers, a average human cell is 10 micrometers. 8 people found this useful.
Human bodies donât contain 10 times as many bacteria as human cells, new calculations suggest. A âstandard manâ weighing 70 kilograms has roughly the same number of bacteria and human cells in his body, researchers report online January 6 at bioRxiv.org. This average guy would be composed of about 40 trillion bacteria and 30 trillion human cells, calculate researchers at the Weizmann Institute of Science in Rehovot, Israel, and the Hospital for Sick Children in Toronto. Thatâs a ratio of 1.3 bacteria to every one human cell. That estimate could be off by as much as 25 percent, with the average number of bacteria ranging from 30 trillion to 50 trillion. Among individual people, the bacterial count could vary as much as 52 percent, say Ron Sender, Shai Fuchs and Ron Milo.