how long can lice live without a host
The length of time a louce lives without a host depends on the temperature of the climate. It can live for up to 4 days at 74 degree Fahrenheit and 1-2 days at 86 degrees.
Adult head lice can live without a host for 1 to 2 days. Their eggs usually stay on the head near the scalp and are hard to remove.
Lice cannot live without a host for very long as they need blood to survive. It can be a matter of hours before they perish.