Depending on how clean and dirty the chair is, in the process of washing the chair, employees will have to use more or less water. That affects the drying time of the chair. Then if there is sunshine, good ventilation, or air conditioning, the chair will dry faster than in a normal office. The time for the chair to completely dry after washing is 6-8 hours. Or 10-12 hours if the chair was wet washed due to heavy soiling.