Abstract: A sanitation device for cleaning a body of water in an immersion pool of a mikvah has a housing, a driving member and a bypass passageway. The housing includes an inlet, an outlet and internal liquid passages that communicate between the inlet and outlet. The driving member is arranged to urge flow of liquid through the internal liquid passages by exerting thrust upon liquid flowing through the driving member, wherein at least part of the liquid flowing through the liquid passages bypasses flowing through the driving member by flowing through the bypass passageway towards the device's outlet.

Abstract: A sanitation device for cleaning a body of water in an immersion pool of a mikvah has a hollow member that extends along an axis X. In an operative position suitable for cleaning the device is arranged to extend generally immersed in the water and in a general upright orientation. The device further has an upper opening that in the operative position is arranged to be generally flush with the upper surface of the water and a propeller arranged to rotate about axis X and located at a lower region of the device that is arranged to form a downward flow that urges water to enter the device via the upper opening of the device.

Abstract: A generator (100, 101, 102, 103, 104, 105, 106, 107, 108, 109) is used for producing a treated oxygen containing gas for treating a body of matter (11). The generator (100, 101, 102, 103, 104, 105, 106, 107, 108, 109) extends along a generator axis and has an axially extending hollow sleeve (12) defining an internal space (14). At least one lid (16) is located at one of the axial ends of the sleeve (12) and a UV light source (18) and at least one magnet (20) are located along the axis.

Abstract: A sanitation device for cleaning a body of water in an immersion pool of a mikvah has a hollow member that extends along an axis X. In an operative position suitable for cleaning the device is arranged to extend generally immersed in the water and in a general upright orientation. The device further has an upper opening that in the operative position is arranged to be generally flush with the upper surface of the water and a propeller arranged to rotate about axis X and located at a lower region of the device that is arranged to form a downward flow that urges water to enter the device via the upper opening of the device.

Abstract: A generator (100, 101, 102, 103, 104, 105, 106, 107, 108, 109) is used for producing a treated oxygen containing gas for treating a body of matter (11). The generator (100, 101, 102, 103, 104, 105, 106, 107, 108, 109) extends along a generator axis and has an axially extending hollow sleeve (12) defining an internal space (14). At least one lid (16) is located at one of the axial ends of the sleeve (12) and a UV light source (18) and at least one magnet (20) are located along the axis.