A 400-square-meter health club needs 2-3 cleaners. The work scope of the cleaning staff in the fitness club includes: disinfection and cleaning of the venue in the fitness club, cleaning of linen and cleaning of the windows outside the fitness club. These disinfection and cleaning jobs are not one-off, and they need to be operated every few hours, so a 400-square-meter fitness club needs 2-3 cleaners.