Sediment Filtration: The process starts with a sediment filter used to reduce the solids that are not dissolved within the water. These filters are usually about 1 micron (the human hair is about 70 microns).

Carbon Filtration: The carbon filter acts in two ways. The first stage removes any remaining particles while the second stage removes contamination. This high-performance filter has a pore size of approximately 0.01 microns.

Reverse Osmosis Membrane: Reverse Osmosis is the most effective way to remove contamination and biological threats. This process removes large molecules and ions from water by applying pressure to the water when it is on one side of a selective membrane.

Carbon Filtration Polishing: bluedrop units come with a second carbon filtration stage that polishes the water even further, ensuring only clean pure water is allowed on to the fifth and last stage of purification.

Ultra-Violet Light: As a final stage, bluedrop systems use either an active ozonation or UV light process to sanitize the water prior
to dispensing. This removes any biological activity that may have been present after the purification process.