Clothes, towels, bedding, combs, and brushes, which came in contact with the infested individual, can be disinfected either by leaving them outside for at least two weeks or by washing them at 60 °C (140 degrees F) for 30 minutes.[17] This is because adult lice can survive only one to two days without a blood meal and are highly dependent on human body warmth.[18] An insecticidal treatment of the house and furniture is not necessary.