An air purification system includes a conduit extending between an inlet and an outlet, each in fluid communication with an enclosed environment. Ambient air from the enclosed environment enters the conduit via the inlet and treated air exits the conduit and enters the enclosed environment via the outlet. The system further includes a fibrous filter disposed within the conduit and configured to treat the ambient air thereby generating the treated air, and a renewal unit disposed within the conduit and configured to renew the fibrous filter.

The present invention provides a safer way to intubate patients having communicable diseases, such as bacterial and viral infections. It protects health care professionals performing the intubation from bodily fluids of the patients that might otherwise be projected directly onto them by coughing, gagging, vomiting, or sneezing. Additionally, it traps airborne suspensions or aerosols containing pathogens, such as bacterial, myco-bacterial, viral, or fungal infections, originating from the patient and keeps them from entering into the air in close proximity to the healthcare professionals. The contaminated air can then be vented to a location which is away from personnel, such as an outdoor containment area. In one embodiment of this invention the contaminated air is passed through a disinfecting solution which destroys the pathogens before the air is recycled into the environment, such as the room where the intubation is carried out.

The present disclosure provides a composition. In an embodiment, the composition includes (A) from 85 wt % to 99 wt % of an olefin-based polymer and (B) from 15 wt % to 1 wt % of an odor suppressant. The odor suppressant is a blend of (i) particles of zinc oxide, and (ii) zinc ionomer. The zinc oxide particles have a D50 particle size from 100 nm to 3000 nm, a surface area from 1 m.sup.2/g to 9 m.sup.2/g, and a porosity less than 0.020 m.sup.3/g. The composition has a methyl mercaptan odor suppression value of less than 70 at 3 days as measured in accordance with ASTM D5504-12.

[Problem] The purpose of the present invention is to provide a deodorizing catalyst that can decompose a malodorous substance even at a low temperature of 100° C. or less.

[Solution] A deodorizing catalyst for decomposing a malodorous substance, comprising: manganese oxide wherein the manganese oxide satisfies the following expression (1) and the following expression (2), and the manganese oxide has a maximum intensity peak at a diffraction angle (2θ) of 37±1° in an X-ray diffraction pattern:

0<A≤0.90 . . .   (1)

0<B≤250 . . .   (2) wherein, in the above-mentioned expression (1), A represents the content ratio of manganese having an oxidation number of 3 (Mn.sup.3+) to manganese having an oxidation number of 4 (Mn.sup.4+) (Mn.sup.3+/Mn.sup.4+) in the manganese oxide, and, in the above-mentioned expression (2), B represents a specific surface area of the manganese oxide (m.sup.2/g)

Presented here is a multi-functional powder which: comprises the first component that includes one selection from the group consisting of silicon oxide (SiO2), aluminum oxide (Al2O3), calcium oxide (CaO), magnesium oxide (MgO), and combinations thereof; and the second component that includes at least one selection from the group consisting of iron oxide (Fe2O3), potassium oxide (K2O), sodium oxide (Na2O), strontium oxide (SrO), sulfur trioxide (S3O), boron oxide (B2O3), manganese oxide (MnO), titanium dioxide (TiO2), and combinations thereof; whose far-infrared emission rate for the wavelength region of 5 .Math.ms to 20 .Math.ms at 37° C. is between 0.5% and 5%; whose harmful gas deodorization balance index under the following Formula 1 is between 0.8 and 2.0; and whose bacterial reduction rate (%) is 90% or greater for each of staphylococcus aureus (ATCC 6538), Escherichia coli (ATCC 8739), Klebsiella pneumonia (ATCC 4352), and Pseudomonas aeruginosa (ATCC 10145).

A method for reducing odor, by providing a colloidal dispersion of particles of silica having a particle size of from 3 nm to 100 nm, said particles having ions of one or more metals selected from copper, silver, zinc and iron adsorbed at the particle surface, and bringing at least one of said particles into contact with an odorous compound; and/or providing an aqueous silicate solution containing metal ions selected from ions of copper, silver, zinc and iron, and bringing at least one metal ion-carrying silicate particle formed in the solution into contact with an odorous compound. A composition for use in such a method and a product treated by such a composition.

A particle collection vessel (2) which charges particles in air and then collects them includes a vessel body (7) having an opening (8); a suction part (14) provided in the opening (8) and having an inflow path (22) through which the air is flowed from an outside into an inside of the vessel body (7); a discharge part (16) provided in the opening (8) and having an outflow path (26) through which the air is discharged from the inside to the outside of the vessel body (7); a discharge electrode (15) provided in the inside of the vessel body (7) and to which a high voltage is applied; and a medium storage part (50) provided in the inside of the vessel body (7) and capable of storing a medium for collecting the particles in the air charged by the discharge electrode (15).

A “MINITOX FAN” mouthpiece with a ventilated air flow for a smoking article comprises a housing, a smoking pipe, said housing being configured from two hollow conical detachable parts for connection to one another and to cylindrical appendices at opposite ends for connection to the smoking pipe and to a hose, respectively; a cylindrical cartridge with a cap, which is disposed inside the housing and has a closed bottom with a lip and through slots across the entire surface of the housing; an insert in the form of a hollow cylinder of smaller diameter for placement inside the cartridge, said insert having a closed bottom, a tightly sealing cap and through slots on the cylindrical surface, at each end of which are appendices, having a diameter that is not greater than the diameter of granules of aluminum oxide and silica gel, for suspended placement of the insert inside the cartridge, wherein the cartridge comprises segments containing a moisture-retaining sorbent and an odor-absorbing sorbent in the form of particles or granules, and the insert contains a detoxifying sorbent; and a fan in the form of a wheel with a shaft.

The invention relates to the field of air purification, sterilization, disinfection, sanitization, removal of particulate matter and harmful gases. A UV light source(102), which is preferably positioned parallel to the flow of air ensuring continuous disinfection of the airstream due to increased residence time, and a filter (106) that is preferably positioned surrounding/around the UV source. In an embodiment, the invention is disclosing a self-cleaning ability that is achieved by using electrostatic fields. In another embodiment, a small, compact self-cleaning purifier/device can be used to sanitize small, enclosed spaces like cars, cabins, etc.

The invention describes a specific, multilayer tubular film for the manufacture of catheter devices that are usable in the most odor-neutral manner possible. The passage of substances through the film wall may be reduced or avoided by incorporating suitable barrier layers. The delivery of strong-smelling active substances and also the discharge of intensely odorous excretions or secretions may be optimized in a problem-solving manner by proportional layers of EVOH- or PVDC-based materials, for example, in the multilayer film structure. The invention combines these barrier layers with mechanically loadable carrier layers made of polyurethane (PUR), PVC, or also polyamide (PA) or PA-related material layers, for example. The invention describes, among other things, embodiments of catheters having retaining balloon components that are equipped with odor-inhibiting layer portions over the entire intracorporeal and extracorporeal surface of the catheter and that thus provide maximum protection against release of odors. The invention further describes embodiments that are manufacturable in a particularly advantageous manner, with several of the components that make up the catheter being manufactured by simultaneous forming from a single film tube blank.