B01D2257/90

Air filtration device
11123678 · 2021-09-21 ·

A device is provided. The device includes one or more of a container, filtration media, and a vacuum apparatus. The container includes a first hole in a first end of the container and a second hole in a second end of the container opposite the first end. The filtration media is disposed within the container, and is configured to absorb an odor present in inlet air. The vacuum apparatus is coupled to the first hole, and is configured to pull inlet air through the filtration media from the second hole and provide filtered air to the first hole.

SCENT DEVICE
20210187145 · 2021-06-24 ·

A scent device comprises a container defining a volume and configured to hold a fill material, which may include one or more chemical compounds, natural formulations, or both configured to absorb odor and/or moisture, and/or emit a scent. The scent device includes a vented cap reversibly coupled to the container via a connection mechanism, and a breathable insert sandwiched between the container and the cap. The breathable insert may comprise a non-woven fabric supported along its perimeter by a structural mount. Methods of manufacturing the scent device involve cutting a mount from a support material, attaching a breathable material to the mount to form a breathable insert, depositing a scent-controlling material within a container, and sandwiching the breathable insert between the container and a cap upon coupling the cap with the container.

DEODORANT
20210113730 · 2021-04-22 · ·

Disclosed is a deodorant comprising metal-containing oxidized cellulose nanofibers containing a metal other than sodium in salt form and having a number-average fiber diameter of 100 nm or less and an average degree of polymerization of 100 to 2,000. The metal other than sodium is at least one metal selected from the group consisting of copper, zinc, and silver

BIOLOGICAL SYSTEMS AND METHODS FOR AIR PURIFICATION
20210154619 · 2021-05-27 ·

The present invention relates to a device and a method associated with the device. With respect to the device, it is a biological Air Purifier, which captures air contaminants without limit of size and type by “electric molecular charge attraction” and then digests the captured contaminants by bio-oxidation by means of a microorganism compound additive.

Free-standing liquid membranes for substance separation, filtration, extraction, and blockage

A free standing liquid membrane is disclosed that can selectively separate objects based on the kinetic energy value of the objects such that either an object having a first kinetic energy value can pass through the free standing liquid membrane while retaining the membrane and/or an object having a second kinetic energy value is prevented from passing through the membrane while retaining the membrane. Advantageously, the free standing liquid membrane can remain intact for seconds to hours with multiple objects passing through the membrane.

Filter medium

The invention describes a filter medium (10), in particular for an air filter, in particular an interior air filter or for a fuel cell, including at least three active layers: a catalytic active layer (12) comprising catalytic activated carbon particles (12a), a second active layer (14) comprising impregnated or catalytic activated carbon particles (14a), a third active layer (16) comprising impregnated or catalytic activated carbon particles (16a), wherein at least one active layer comprises impregnated activated carbon particles and the three active layers (12, 14, 16) differ from one another. The invention further discloses a filter media body including the filter medium; a filter element including the filter media body or the filter medium; an air filter including the filter element or the filter media body or the filter medium, and a production method for producing the filter medium.

PURIFICATION OF POLLUTED AIR USING MICRO-ORGANISM-CONTAINING PARTICULATE MEDIA
20210101113 · 2021-04-08 ·

A process for purifying polluted air, includes passing polluted air through a fluidized bed of micro-organism-containing primary particulate media so that, as the polluted air passes through the fluidized bed, organic pollutants therein are removed by the micro-organisms. Partially purified air containing a lower level of the organic pollutants than the polluted air that enters the fluidized bed, emerges from the fluidized bed. The partially purified air is passed through a static bed of secondary particulate media thereby to remove residual organic pollutants from the partially purified air. Purified air is thus produced.

Composition for preventing odor, containing odorless microorganisms

Disclosed is a coating composition for preventing odor. The coating composition may include one or more types of odorless microorganisms selected from the group consisting of Caulobacter vibrioides, Bradyrhizobium diazoefficiens, Bradyrhizobium daqingense and Methylobacterium brachiatum or a culture solution thereof. Further provided is a method for preventing odor, and the method may include applying the coating composition for preventing odor. When a biofilm is formed from the microorganisms in the coating composition by coating an object on which an odor-causing microorganism can live, the inflow and the inhabitation of external microorganisms generating odor may be significantly blocked, thereby enabling odor to be effectively prevented.

Air ionization system and device

An ionization device may be configured to be portable, and to rest on a surface such as a floor or desk top. The ionization device includes an air-intake port, an ion generator, an ozone catalyst for removing at least some ozone from air, and an air discharge. Air enters the device through the air-intake port, and at least some of the air is ionized to remove particulates. The air is then moved past or through the ozone catalyst to remove at least some of the ozone from the air. A controller may be used to monitor particulates, temperature, humidity, and/or other relevant factors and/or to adjust the ionization level.

Air purifier apparatus
11007341 · 2021-05-18 · ·

The invention relates to a modular, portable, air purifier device capable of supplying filtered or otherwise conditioned airflow to an individual. More specifically, the present invention provides an air purification system that allows for the remote detection and analysis of local ambient air quality and transmit that information to wirelessly connected devices.