The present invention relates to a porous sheet product, to a filter element comprising the porous sheet product, to a method for producing the porous sheet product, to a method for producing the filter element, and to the use of the sheet product and of the filter element.

A air purification system, whose air flow pipeline made of highly reflective and low absorptive material for UVC or UVB light acts also as a UV light waveguide, with a UVC and/or UVB LED built inside the pipeline, is invented. The system is based on the design concept of maximizing UV light exposure dosage to deactivate all the bioaerosols in the air flow pass through the system. The proposed system can be easily integrated into travel pillow, backbag, handbag, belt bag as well as air supply systems for public and private transport systems. The system provides purified air supply for travelers in the closed environment such as in a airplane, or on a train against various dangerous viruses including COVID-19 and SARS virus. It can also be used in office during flu season as well as provide cleaned air supply to its users against the hay-fever.

A composite virucidal filter media is described. The filter media comprises a fibrous substrate comprising a plurality of intermingled fibers, a low cost, nontoxic, hydrophilic polymer without acidic functional groups deposited on a surface of the fibers without the formation of a continuous coating layer on the substrate, and a virucidal metal, a virucidal metal-containing compound, or combinations thereof deposited on the surface of the fibers comprising the hydrophilic polymer without acidic functional groups. The hydrophilic polymer without acidic functional groups can be charged or non-charged. Methods of making virucidal fibrous filter media are also described.

An apparatus configured to purify air and sanitizing including a main base including one or more buttons configured to operate the apparatus, a lid attachable to the main base and that includes one or more ventilation perforations to intake air and an orifice to output purified air, a filter adjacent to the one or more ventilation perforations and enclosed in the lid, wherein the filter is configured to remove at least bacteria from atmospheric air and extract purified air, a fan configured to intake atmospheric air into the filter and blow purified air extracted from the filter outside of an orifice of the lid, a tank configured to store liquid, wherein the liquid includes at least liquid sanitizer, a pump configured to output liquid stored in a tank, and a cavity section that includes an outlet configured to output the liquid sanitizer in response to actuation of the pump.

A detoxification device for removing pathogens from air within an environment. The detoxification device may include a filtration media for catching and retaining particles larger than about 0.3 micrometers (μm) with an efficiency of at least 99%. The detoxification device may also include a heating element having a metallic foam. The heating element may be heated upon application of an electrical current to the heating element. The heating element may, upon being heated, heat the filtration media to a target temperature that is effective to kill a pathogen.

An object is to provide an excrement treatment agent, which can suppress not only the odor of feces but also the ammonia odor in various environments. An excrement treatment agent, comprising limonite, lignin and bentonite, wherein, when further comprising slaked lime, the amount of the slaked lime is 10 mass % or less.

A water absorption treatment material absorbs a liquid containing a malodorous substance, and includes a first grain and a second grain. The first grain contains a metal having a deodorizing function. The second grain does not contain a metal having a deodorizing function.

A composition of matter is described characterized by its qualities to adsorb scents present in gas, liquid and solid matter phases, while simultaneously serving as a carrier for an active ingredient or combination of active ingredients. The composition may also include an additive. The active ingredients are simultaneously and/or independently released gradually by the carrier, or a combination of carriers.

An adsorbent and a granulated substance for which reduction in adsorption performance in low humidity environments is suppressed are provided. The adsorbent includes: a porous body mainly composed of silicon dioxide, including a plurality of fine pores, and having a specific surface area of not less than 1 m.sup.2/g and not more than 10 m.sup.2/g; one of an acid and a base with which inside of the fine pores of the porous body is impregnated to neutralize a target gas to generate a salt; and a hydrophilic fiber held in the porous body.

An apparatus for collecting a gaseous pollutant from air within a poultry or other concentrated animal feeding enclosure may comprise multiple vertical panel-beds each containing a solid sorbent; a fan to pass the air within the poultry enclosure through the multiple vertical panel-beds and over the solid sorbent; an outlet gate configured to release the solid sorbent from the multiple vertical panel-beds after the fan passes the air over the solid sorbent; a regeneration vessel configured to regenerate the released solid sorbent by recovering the gaseous pollutant from the released solid sorbent; and a conveyor configured to return the regenerated solid sorbent to the multiple vertical panel-beds.