A concentration device for concentrating a liquid containing a target object, the concentration device including: a container configured to store the liquid containing the target object; a filter in the container; and a position control portion configured to change a position of the filter in the container.

The present disclosure relates to a mask having improved capability of blocking harmful substances, the mask including: a mask main body including at least one main body sheet; and an earring unit which is formed on both side surfaces of the mask main body, and including a coating layer which is formed on at least one surface of the main body sheet and comprises a TiO.sub.2-based nonphotocatalyst that is activated without irradiation of the solar light to decompose the harmful substances, wherein the nonphotocatalyst comprises: titanium dioxide (TiO.sub.2) having a band gap of 3.0 to 3.2 eV; and a transition metal doped with the titanium dioxide, and generates electrons through a spontaneous reaction by making Gibbs free energy change values into negative numbers.

A filter that includes: a filter base portion having a first main surface and a second main surface opposite to the first main surface, the filter base defining a plurality of through-holes communicating between the first main surface and the second main surface; and a support portion on the filter base portion, wherein the support portion includes: a main body portion on the first main surface and including a plurality of fixing portions in some of the plurality of through-holes; and a protruding portion protruding toward an outer side portion of the main body portion in a direction along the first main surface from a fixing portion located on a sidewall side of the main body portion among the plurality of fixing portions, and a thickness of the protruding portion is smaller than a thickness of the main body portion.

The present invention relates to a water purifier filter, and a water purifier including the same. The water purifier filter and the water purifier including the same according to the present invention include a filter housing including an inlet and an outlet, and a filter module provided in the filter housing to purify water introduced through the inlet and to supply the water to the outlet, and a material of the filter module includes sodium orthotitanate (Na.sub.4TiO.sub.4) to remove a heavy metal under water, thereby effectively removing a heavy metal including cadmium under water.

The present invention relates to an air filter using glass and aluminum substrates coated with a photocatalyst and a manufacturing method therefor. Disclosed is an air filter, which is more efficient in removing organic gas from air by using optical properties of a glass material and surface reflectance of an aluminum metal material to actively utilize the transmission and reflection of the light that is limitedly provided.

Apparatuses of electrochemical antimicrobial face masks and methods for manufacturing the same are provided. In one embodiment, an electrochemical antimicrobial face mask may include an electrochemical antimicrobial section configured to inactivate microbes that are in contact with the electrochemical antimicrobial section, and a filtration section configured to provide additional protection that prevents a user from breathing in the microbes, and where the electrochemical antimicrobial section is attached to the filtration section. The electrochemical antimicrobial section may include a galvanic corrosion cell membrane configured to generate antimicrobial agents via a galvanic electrochemical reaction, a hydrophilic antimicrobial membrane configured to inactivate microbes using the antimicrobial agents, and a regeneration pad configured to supply materials to the galvanic corrosion cell membrane for generating the antimicrobial agents.

A system and method for laminating filter media can include applying an adhesive to a layer of the filter media and curing the adhesive. A multilayer filter assembly can include a first and a second layer laminated together using an inorganic adhesive.

A super-hydrophilic surface treatment method of a filter medium of a filter for oil-water separation according to the present invention includes preparing a filter medium or a filter including the filter medium using a polymer base or a metal base, and forming a hydrophilic coating layer to the filter medium or the filter including the filter medium by cross-linking bis-acrylamide (N,N-methylenebisacrylamide).

A filtration device that includes: a passage member defining a passage including an inlet and an outlet; and a filter disposed in the passage between the inlet and the outlet. The inlet has an inlet passage sectional area. The passage includes a first passage having a first passage sectional area that increases from the inlet toward the filter on an upstream side of the filter, and a second passage having a second passage sectional area that is uniform from the first passage toward the filter. The second passage sectional area is greater than the first passage sectional area, and a second passage length of the second passage is greater than a first passage length of the first passage.

The present invention relates to an air filter using glass and aluminum substrates coated with a photocatalyst and a manufacturing method therefor. Disclosed is an air filter, which is more efficient in removing organic gas from air by using optical properties of a glass material and surface reflectance of an aluminum metal material to actively utilize the transmission and reflection of the light that is limitedly provided.