How do you treat a home or school for lice?

Homes or schools don't get head lice - people do. Head lice are human parasites and require human blood to survive. Vacuuming is the safest and best way to remove lice or fallen hairs with attached nits from upholstered furniture, rugs, stuffed animals, or car seats - wherever someone with head lice may have rested their head. Pesticide sprays are unwarranted and may pose personal and environmental hazards.