The invention provides a system for sanitizing fluids such as water and air. In particular, the invention provides a combination of solid chlorhexidine and a polymer matrix, for which effluents are essentially free of leached chlorhexidine. The systems enable rapid disinfecting of fluids, including in line at the point of use, and can be employed for both high volume applications and disposable single-use applications.

The invention comprises a vacuum cleaner filter bag (1), comprising a bag wall (2) and a retaining plate (3), wherein the retaining plate (3) is connected to an at least partially cylindrical connection piece (4) which extends in a direction perpendicular to a passage opening (5) formed in the retaining plate (3), wherein the bag wall (2) is connected with the lateral surface of the connection piece (4) along the circumference thereof.

The invention relates to a filter for a brake device, comprising a case, a cylindrical tubular filtering element and a dismantlable axial fastening system. The filtering element is located inside the case and the case includes a cylindrical tubular lateral wall having two opposite end edges, a first and a second. The filtering element sits on an internal surface of the lateral wall of the case. The dismantlable axial fastening system provides axial fastening of the filter when same is assembled in the brake device, axial fastening of the filtering element inside the case, and means for assembling and dismantling the filter. The purpose of the filter is to collect all the particles harmful to health that are released each time the brake device brakes, preventing said particles from being transferred to the air that is breathed.

A system (10) for treating the air in the cabin of a vehicle includes a casing, an air conditioning apparatus, a filtering device (16) an RFID tag (28) containing identification information about the filtering device (16). An RFID reader (30) co-operates with the RFID tag (28) to read the identification information. A control unit (32) is connected to the RFID reader (30) and configured for receiving the identification information and for executing predefined operations as a function of the identification information.

A suction apparatus includes a suction apparatus housing, including a filter for cleaning a suction flow, wherein the suction apparatus housing has at least one filter fastening element for securing the filter to the suction apparatus housing, and including a filter cleaning device for mechanically cleaning the filter. The filter, the filter fastening element and the filter cleaning device are arranged within the suction apparatus housing. The filter cleaning device includes an actuation device and a hammer device. The actuation device and the hammer device interact such that the hammer device can be actuated by using the actuation device and, when actuated, the hammer device applies at least one pulse to the filter securing element.

A filter element has a filter medium annularly surrounding a longitudinal axis of the filter element. The filter medium can be flowed through radially from an exterior to an interior and has a plurality of folds. A first end disk is arranged at a first end face of the filter element. A primary air passage and a secondary air passage are provided. The filter medium has an axial recess at the first end face. The first end disk has a channel forming the secondary air passage and extending in the axial recess. The plurality of folds include first folds in a region of the recess and second folds away from the recess. An axial length of the first folds is reduced relative to an axial length of the second folds. An air filter with such filter element and an assembly method for the air filter are provided.

Proposed is an air purifying filter. The air purifying filter includes a filtering layer (30) configured as a dielectric which collects minute particles, a first electrode layer (50) laminated on a side of the filtering layer (30) and comprising insulated wires (51) to which power is able to be applied, and a second electrode layer (70) laminated on a side of the filtering layer (30) opposite to the side of the first electrode layer and comprising a conductive material such that a polarity opposite to a polarity of the first electrode layer (50) is applied to the second electrode layer or the second electrode layer is grounded.

The invention discloses a two-way air-intake air purifier combined with multi-wind wheel, which includes at least two sets of air inlet grooves are provided an air guide component and at least one air outlet grooves, when the motor fan works, it can drive the air to enter from the air inlet groove, divert the air through the air guide assembly, and make the air flow out of the air outlet groove, by having at least two sets of air inlet grooves and air outlet grooves on the second cover on the left and right sides, the effect of double air-inlet and double air-outlet is realized.

A method of detecting a need for regeneration of an exhaust particulate filter is described. A first pressure drop is detected in a flow section of an exhaust system which includes the exhaust particulate filter. In addition, an exhaust gas temperature is determined. An exhaust gas mass flow flowing through the exhaust particulate filter is then calculated on the basis of the exhaust gas temperature and the pressure drop. Furthermore, a second pressure drop at the exhaust particulate filter is determined. A need for regeneration is detected when the second pressure drop exceeds a predefined pressure limit value that is dependent on the exhaust gas mass flow. Moreover, an exhaust system for an internal combustion engine is presented which includes an exhaust particulate filter.

Embodiments provide an aeromedical bio-containment module for use in a cargo plane. The aeromedical bio-containment module includes a fully integrated pallet system allowing for the module to roll onto the cargo plane. An integrated set of lugs allows the module to be locked into the cargo plane floor without the use of chains or other pallets. The aeromedical bio-containment module features a ward area for safe treatment of patients, an anteroom, and an office area for personnel. The aeromedical bio-containment module operates under a negative pressure system, and includes a full air filtration system to remove pathogens, particulates, and other airborne contaminants.