... ,12hours 3) Power: 2AA battery 4) Refill: air freshener, Dia45mm Function: 5,10,15,20,25, ... of dispenser. You can choose aerosol such as air freshener, insecticide, bactericide or others according to your ... office or other public places with virtue of cleaning air, sterilization and deodorization when it works with aerosol.3 ... Effective space : about 120m³for one sprayer. Wall Mounted Aerosol Dispenser