A HEPA-filtered vacuum cleaner should be used for this stage of cleaning.  The HEPA filter will prevent microscopic particles, including the lice and their eggs, from being exhausted back into the room when the vacuum cleaner is running.  Service includes vacuuming all surfaces of the mattress and box springs in all affected rooms, vacuuming the headboards, rails, and footboards of the bed frames, furniture around the bed and frame, all flooring surfaces throughout the affected rooms, and baseboards of the affected rooms.  In other areas of the home, the couches, sofas, love seats, recliners, and other upholstered furniture will be vacuumed.