CoolerClean Spray has been designed to sanitize the outside contact points of the water cooler (bottle cap, waterguard and taps). It is a known fact that water coolers in the field will get contaminated with bacteria. Overtime, this could lead to the development of biofilm which is hard to tackle and reflects on your water quality. Prevention is the better cure, so it is important to have a sanitation solution in place that will not allow a biofilm to develop in the first place. CoolerClean is the only all-around, non-toxic sanitation solution for water coolers, targeting both the interior and exterior contact points and proven to be effective against biofilm.