... , our Reverse Osmosis Super Water Purifier comprises six stages of filtration as follows:Polypropylene (PP) Filter: made from ... least substantially reducing, a very wide range of contaminants, and of all technologies used to treat drinking water ... trichloroethylene, trihalomethanes, and radon. Essentially, reverse osmosis is capable of rejecting bacteria, salts, sugars, proteins, particles, dyes, heavy ...