A multi-cyclone separator of a multi-stage fluid filter for cleaning gaseous fluid is provided with a plurality of cyclone cells for separating particles and/or liquid from the gaseous fluid. The cyclone cells each have an inlet for the gaseous fluid to be purified, an outlet for the gaseous fluid freed of particles and liquid, and at least one discharge window discharging the separated particles and liquid. At least one discharge chamber is provided, and the discharge windows of the cyclone cells open into the at least one discharge chamber. At least one discharge opening leads out of the at least one discharge chamber. The at least one discharge chamber tapers in a funnel shape toward the at least one discharge opening. A multi-stage fluid filter is provided with the multi-cyclone separator that is arranged upstream of a main filter of the multi-stage fluid filter.

A filter system for a closed fluid transfer system with pressure equalization. The filter system includes a filter having a main flow direction for a fluid passing through the filter extending from a fluid inlet surface to a fluid outlet surface, and a filter housing. The filter has a greater or at least equal extension in the main flow direction compared to at least one direction transverse to the main flow direction.

A hydrophobic filter for filtering an airflow or another gaseous flow in a medical application has a housing encompassing a filter chamber, an inlet port arranged on the housing and forming an inlet opening, an outlet port arranged on the housing and forming an outlet opening, and a hydrophobic structure extending along a plane of extension and separating the filter chamber into an inlet chamber and an outlet chamber. The inlet opening opens into the inlet chamber and the outlet opening opens into the outlet chamber. Herein, the outlet opening opens into the outlet chamber at a first location when viewed along the plane of extension and the inlet opening opens into the inlet chamber at a second location different from the first location when viewed along the plane of extension.

A pollutant filtering assembly for filtering pollutants from vehicle exhaust includes a tube that has a diameter which is sufficient to facilitate the tube to be inserted into an exhaust pipe of a vehicle. A sleeve extends around the tube to facilitate the exhaust pipe to extend between the tube and the sleeve. A handle is pivotally coupled to the tube for inserting the tube into the exhaust pipe. A filtering cartridge is insertable into the tube. The filtering cartridge has a plurality of filtering elements that is each comprised of a unique pollutant filtering material with respect to each other. Moreover, each of the filtering elements can filter pollutants from exhaust of the vehicle.

The present disclosure provides three-dimensional (3D) printing processes, apparatuses, software, and systems for controlling and/or treating gas borne debris in an atmosphere of a 3D printer.

An apparatus and methods are provided for an air filter precleaner for an open air filter box. The air filter precleaner includes a filter medium between a base and a grating that are fastened over an opening into an interior of the air filter box. The filter medium comprises a sheet of filter material having a shape and a size suitable for being supported between the base and the grating. The base is a rigid member that supports the filter medium in a sheet configuration, such that the airstream passes through the filter medium before entering the air filter box. The grating is a rigid member comprising a screen portion surrounded by a frame that is configured to be fastened onto the air filter box. The screen portion comprises a shaped lattice that allows the airstream to pass through the filter medium before entering the air filter box.

The airflow exhaust system for a combination washer/dryer includes an exit duct portion to couple with an exit from a tub. A lint screen box portion is associated with the exit duct. A transition duct portion is associated with the lint screen box portion. A fan is associated with the transition duct. The fan includes an outlet to couple with an exhaust tube. A mounting assembly stationarily fastens the airflow exhaust system within a housing of the combination washer/dryer machine.

A device that comprises an outer component, an inner component and a filter module. The outer component includes a first hollow cylinder, and exterior ports in sidewalls of the first hollow cylinder. The inner component is positioned coaxially within the first hollow cylinder, and includes a second cylinder, and interior ports in the second cylinder, wherein the interior fluid ports are aligned parallel to the exterior ports. The filter module includes a hollow prism positioned coaxially within the outer component and surrounding the inner component, the hollow prism comprising at least four faces configured to retain filters. The filter module also includes vanes positioned along edges connecting the at least four faces and forming seals with the first hollow cylinder. A first filter is provided on a first face, of the at least four faces, which is aligned between a pair of the interior and exterior ports.

A sterile drug dispensing system, comprising: an air source output device, a handle and a drug dissolving device; the drug dissolving device is detachably mounted on the handle, the handle being connected to the air source output device by means of a power line and an air pipe, being for use in filtering gas and controlling the gas source output device; the gas source output device is used for outputting and extracting gas. A sterile drug dispensing method, which corresponds to the operating steps of the sterile drug dispensing system.

The disclosed filter element is configured for use within a housing of a filter assembly. The filter element includes an obround ring of filter media extending between an upper and lower endcaps and defines a dirty wet fuel region. The upper endcap of the filter element defines an inlet for receiving the dirty wet fuel, which flows into the dirty wet fuel region and radially outward through the filter media. The upper endcap may include an insert to define a flow chamber to distribute fuel into the dirty wet fuel region. A clean wet fuel region is defined outside the filter element and within the housing. After flowing through the inlet and the filter media clean wet fuel fills the clean wet fuel region. A water separator is disposed external to the filter media and defines a clean dry fuel region in communication with an outlet defined by the upper endcap.