Owning a purifier, directly attached to the tap, saves a family or office so many pesos a month, ensures their security from strangers, assures water quality that is of the highest purity standard and spares the home or office precious space, otherwise used for storing 5-gallon containers and operating water dispensers. Also, your drinking water would no longer have to be handled and delivered by a third party whose compliance to health and sanitation is hugely unknown.
One great advantage is that for the environment. Consumers don’t need to buy and throw away water PET bottles, thereby reducing household wastes that otherwise go to the landfills or oceans.