The present invention provides a water shower filter unit to provide clean treated water substantially free from chlorine, organic contaminants, and suspended solids by the use of primary filter, secondary filter and tertiary filter. The primary filter constructed from polymer material capable of filtering particle of 10 microns and above for eliminating suspended solid. The primary filter further comprises of chlorine removal material for removal of chlorine and contaminants. The secondary filter made of multiple layers of activated balls. Tertiary filter made of magnetic energy ceramics balls and mineral stones reside in elongated, hollow internal chamber of shower head is for water activation.

The present invention provides a water shower filter unit to provide clean treated water substantially free from chlorine, organic contaminants, and suspended solids by the use of primary filter, secondary filter and tertiary filter. The primary filter constructed from polymer material capable of filtering particle of 10 microns and above for eliminating suspended solid. The primary filter further comprises of chlorine removal material for removal of chlorine and contaminants. The secondary filter made of multiple layers of activated balls. Tertiary filter made of magnetic energy ceramics balls and mineral stones reside in elongated, hollow internal chamber of shower head is for water activation.

The invention comprises an environmentally benign method for the direct in situ preparation of copper nanoparticles (CuNPs) in paper by reducing sorbed copper ions with ascorbic acid. Copper nanoparticles were quickly formed in less than 10 minutes and were well distributed on the paper fiber surfaces. Paper sheets were characterized by x-ray diffraction, scanning electron microscopy, energy dispersive x-ray spectroscopy, and atomic absorption spectroscopy. Antibacterial activity of the CuNP sheets was assessed for by passing Escherichia coli bacteria suspensions through the papers. The effluent was analyzed for viable bacteria and copper release. The CuNP papers with higher copper content showed a high bacteria reduction of log 8.8 for E. coli. The paper sheets containing copper nanoparticles were effective in inactivating the test bacteria as they passed through the paper. The copper levels released in the effluent water were below the recommended limit for copper in drinking water (1 ppm).

The invention comprises an environmentally benign method for the direct in situ preparation of copper nanoparticles (CuNPs) in paper by reducing sorbed copper ions with ascorbic acid. Copper nanoparticles were quickly formed in less than 10 minutes and were well distributed on the paper fiber surfaces. Paper sheets were characterized by x-ray diffraction, scanning electron microscopy, energy dispersive x-ray spectroscopy, and atomic absorption spectroscopy. Antibacterial activity of the CuNP sheets was assessed for by passing Escherichia coli bacteria suspensions through the papers. The effluent was analyzed for viable bacteria and copper release. The CuNP papers with higher copper content showed a high bacteria reduction of log 8.8 for E. coli. The paper sheets containing copper nanoparticles were effective in inactivating the test bacteria as they passed through the paper. The copper levels released in the effluent water were below the recommended limit for copper in drinking water (1 ppm).

A drink filter system and method are disclosed. The system has a disposable drink filter having a filter portion, a first flange coupled to the filter portion, and a handle. The system also has a reusable cartridge having a cartridge housing and a cartridge lid positioned on the housing, at least one of the housing or the lid having a second flange. The first flange is shaped and configured to align the filter relative to the cartridge. The handle is shaped and configured to enable removal of the filter from the cartridge. The second flange is shaped and configured to align the lid relative to the housing.

A submersible vacuum cleaner to clean artificial pools, such as swimming pools. A suction head connected to a suction duct leading into a filter bag. A motor coupled to an impeller located within the suction duct. The spinning of the impeller producing a suction. A battery powering the motor. The motor and the battery being placed in a watertight compartment, itself mostly placed within the filter bag, so as to obtain a compact design of the vacuum cleaner.

A submersible vacuum cleaner to clean artificial pools, such as swimming pools. A suction head connected to a suction duct leading into a filter bag. A motor coupled to an impeller located within the suction duct. The spinning of the impeller producing a suction. A battery powering the motor. The motor and the battery being placed in a watertight compartment, itself mostly placed within the filter bag, so as to obtain a compact design of the vacuum cleaner.

A filter cartridge for an aquarium filter assembly includes a media pack and a frame supporting the media pack. The frame includes a non-clip fastener arrangement connecting the frame and the media pack.

A filter cartridge for an aquarium filter assembly includes a media pack and a frame supporting the media pack. The frame includes a non-clip fastener arrangement connecting the frame and the media pack.