A process of forming a fiber comprised of a plurality of bio-char particles, comprising: combining a portion of a polymer with a hemp derivative, said hemp derivative selected form a hemp carbon made by pyrolyzing a quantity of hemp stalk at between 1100-1500° C. to create a char; adding the char to a milling vessel and milling the char for a period of between 1 to 16 hours, and a full spectrum hemp extract, or combinations thereof, wherein the polymer and hemp derivative are extruded to form a fiber.

Solid phase extraction (SPE) disks are manufactured by introducing a series of components and/or liquid suspensions into a mold and evacuating the liquid to form a cohesive filter or SPE disk. After all the free liquid has been substantially removed, the SPE disk is removed from the mold and dried. SPE disks are for use in analytical chemistry procedures.

An apparatus, method, and system for fluid filtration utilizing a metal alloy core comprised of zinc, nickel, tin, lead, silver, iron, and a remainder of copper. The shapes and sizes of the metal alloy can comprise rods, balls, shavings, tubes, or shot. These shapes and sizes of the metal alloy can then be placed within the various vessels used in the oil and natural gas industries.

The present invention generally relates to an air filter, and in particular, the present invention relates to an air filter with a porous copper layer, having natural antimicrobial property, for improving the quality of air breathed in by people.

Disclosed are improved polymer materials. Also disclosed are fine fiber materials that can be made from the improved polymeric materials in the form of microfiber and nanofiber structures. The microfiber and nanofiber structures can be used in a variety of useful applications including the formation of filter materials.

A filter bag is disclosed that comprises a porous membrane having a strength in the transverse direction to improve durability. There is a filter assembly for filtering particulates from a gas stream comprising a support substructure and a filter bag at least partially surrounding the support substructure. The filter bag comprises a porous membrane having a upstream surface exposed to the gas stream. The porous membrane is lightweight and has a structure to collect the particulates on the upstream surface. In particular, the porous membrane has a bubble point of 0.06 MPa or more and has a strength in a transverse direction that is 100 N/m or more. Other filter bags disclosed comprise a laminate comprising a porous membrane having a bubble point of 0.06 MPa or more and a second layer that acts as a sacrificial material.

The disclosure discloses an anti-haze anti-harmful gas air filter membrane as well as a preparation method and application thereof. The air filter membrane comprises a nano fiber membrane made of nano fibers and having a two-dimensional or three-dimensional network structure. The nano fiber membrane can be a high-molecular polymer nano fiber membrane prepared by utilizing an electrostatic spinning process, and can also be doped with an organic or inorganic additive capable of adsorbing and absorbing harmful gases, such as VOCs, NO.sub.x, SO.sub.x and NH.sub.3, in the air and/or a photocatalyst capable of degrading these harmful gases in a photocatalysis manner, or the like. The anti-haze anti-harmful gas air filter membrane disclosed by the disclosure can efficiently filter PM2.5 and PM10 particulate pollutants and the like in the air and simultaneously can efficiently identify and clear multiple harmful gases in the air. The anti-haze anti-harmful gas air filter membrane has a wide application prospect in the field of air purification, for example, can be applied to air purification devices, such as screen windows, gauze masks and filter screens.

The depth filter includes a first filter layer having a cylindrical shape, and a second filter layer having a cylindrical shape. The second filter layer is arranged on the inner side of the first filter layer, and the second filter layer has a mesh coarseness that is the same as or less than the mesh coarseness of the first filter layer. The depth filter also includes a space layer provided between the first filter layer and the second filter layer. In the space layer, the fluid resistance between a front side and a rear side of the space layer is substantially zero. A filter cartridge including a filter cover and the depth filter arranged inside the filter cover is also described.

A process of forming a fiber comprised of a plurality of bio-char particles, comprising: combining a portion of a polymer with a hemp derivative, said hemp derivative selected form a hemp carbon made by pyrolyzing a quantity of hemp stalk at between 1100-1500 C. to create a char; adding the char to a milling vessel and milling the char for a period of between 1 to 16 hours, and a full spectrum hemp extract, or combinations thereof, wherein the polymer and hemp derivative are extruded to form a fiber.

An air filtering cover is adapted to engage with an infant carrier to filter air communicated into an interior cavity thereof. A cover body having two sidewalls and a filter element form a flowpath for air communicating through the body and filter to remove dirt, dust, and pathogens from air reaching the occupant of the interior cavity. The filter may be replaceable within a pocket formed in the cover body. A gauge strip may be positioned on the filter which changes in appearance when the filter needs replacement.