The invention relates to a filter material comprising a carrier material that is impregnated on one side with a thermally pre-crosslinked binder system (VB) and on the other side with a thermally crosslinkable but un-crosslinked binder system (UB). The filter material is characterised by improved deformability and a very good level of heat sealability, particularly using ultrasound, and a low pressure differential particularly when filtering high-viscosity liquids.

A filtration filter is configured from a first weld frame, a second weld frame, and a filter sandwiched and welded between the first weld frame and the second weld frame. The first weld frame and the second weld frame are configured by a flexible film having a film thickness of at least 120 μm. The filter is configured by a substance having a higher melting point than the first weld frame and the second weld frame and having an opening area ratio of from 10% to 80%. The first weld frame is configured by a polymer that includes either a high density polyethylene having a melting point of from 120° C. to 140° C., a linear low density polyethylene having a melting point of from 105° C. to 125° C., or a mixture including at least one of the high density polyethylene or the linear low density polyethylene.

A filtration filter is configured from a first weld frame, a second weld frame, and a filter sandwiched and welded between the first weld frame and the second weld frame. The first weld frame and the second weld frame are configured by a flexible film having a film thickness of at least 120 μm. The filter is configured by a substance having a higher melting point than the first weld frame and the second weld frame and having an opening area ratio of from 10% to 80%. The first weld frame is configured by a polymer that includes either a high density polyethylene having a melting point of from 120° C. to 140° C., a linear low density polyethylene having a melting point of from 105° C. to 125° C., or a mixture including at least one of the high density polyethylene or the linear low density polyethylene.

An apparatus for a personal protective respiratory device according to various aspects of the present technology include a wearable housing having air filtration system and an air sterilizing system for providing filtered and sterilized airflow to a user. One or more internal fans generate a mass flow rate of air through the duct system. Filtered and sterilized air exits the housing above the user's forehead and is directed onto a face shield to create an elevated pressure zone of air in the region around the user's face. Both dispelled air from the housing and exhaled air from the user flow downwardly along an inner surface of the face shield and away from the user. The face shield may include an edge filter to capture respiratory droplets. A head gown may be coupled to the housing and head shield to provide additional protection against respiratory droplets.

An apparatus for a personal protective respiratory device according to various aspects of the present technology include a wearable housing having air filtration system and an air sterilizing system for providing filtered and sterilized airflow to a user. One or more internal fans generate a mass flow rate of air through the duct system. Filtered and sterilized air exits the housing above the user's forehead and is directed onto a face shield to create an elevated pressure zone of air in the region around the user's face. Both dispelled air from the housing and exhaled air from the user flow downwardly along an inner surface of the face shield and away from the user. The face shield may include an edge filter to capture respiratory droplets. A head gown may be coupled to the housing and head shield to provide additional protection against respiratory droplets.

The present technology provides a disinfectant textile composition having antimicrobial, wash durable, optionally enhanced with multifunctional properties. The technology also provides a method of treating a textile substrate. The method comprises applying a disinfecting treating composition using one or more of an exhaust, padding, coating or spraying process. The treating composition comprises an antifungal agent and further comprises a cross-linking agent. The method also comprises drying the textile substrate using a heat setting process.

The present invention relates to high performance air filters made of a woven fabric and nanofiber filaments. An air filter, comprising a frame assembly (10), a filter assembly (11) attached to the frame assembly (10). The filter assembly (11) further comprises a woven filtering fabric (1) disposed within the frame assembly (10) and comprising calibrated woven strands, and a layer of nanofiber filaments (2) disposed on one side of the woven filtering fabric (1) forming a web of the nanofiber filaments (2) an open area between the strands of the woven filtering fabric (1).

To provide a filament for obtaining a palatable beverage extracting filter having excellent formability, which is less expensive, and having excellent extractability.

A core-sheath type composite multifilament for a palatable beverage extracting filter, including a core component and a sheath component, the core component being a homopolyester having a melting point of 220° C. or more, the sheath component being a copolyester containing terephthalic acid and a diol as major components and having a melting point at least 40° C. lower than that of the core component, and a number of filaments is 2 to 5.

A specially functionalized composite filter material with a high specific surface area is used to adsorb PFAs from potable water. In a preferred embodiment, the base filter material is granular activated carbon (GAC), which is sequentially coated with a thin layer of polydopamine, a thin layer of partially oxidized iron, and a thin coating of octadecylamine. After PFAs are adsorbed onto the coated GAC particles, the PFAs are removed by a rinsing process, and remain in the rinse effluent. GAC particles are recovered and recoated as needed to restore their adsorptive capacity. The PFA-containing effluent is treated using photochemical processes to destroy the PFA molecules. The now PFA-free effluent can be disposed of as a non-hazardous material. The composite filter material works in systems ranging from small passive systems for personal use to large scale, high-flow-rate utility water treatment systems.

An oven comprises a cooking volume and a fluid inlet in fluid connection with the cooking volume for ingress of fluid into the cooking volume. The oven also comprises an outlet conduit in fluid communication with the cooking volume for egress of gas from the cooking volume. The oven further includes a hydrophobic filter in the outlet conduit configured to capture moisture from a flow of fluid egressing from the cooking volume.