Berkefeld filter

The Berkefeld is a good bacterial water filter used in microbiological laboratories, in homes and out in the field.

The water is forced through the filters by gravity,[5] and then trickles down to the lower cylinder where it is stored and tapped off as required.

Some types, depending on their grade of porosity, also remove certain microscopic fungi and particulate matter.

New Millenium Concepts (NMC) Ltd. received a license to distribute British Berkefeld filters in North America.

[7] In the mid-1990s Envirogard Products Limited in Canada developed its own proprietary version of the Berkefeld ceramic filter that would be marketed under the brand Rainfresh.