A filtration system includes a rotary drum and a media holding band that is configured to hold a filtration media on an outer surface of the rotary drum. The media holding band includes a strap and a connector. The strap includes a first end and a second end opposite the first end. The connector is configured to secure the first end of the strap relative to the second end of the strap.

Embodiments of present disclosure relates to a filter for use in a vacuum food processor and a vacuum food processor including the filter. The filter comprising: a first filter part adapted to direct a suction airflow generated by a vacuum module of the vacuum food processor into the filter via an inlet channel; and a second filter part adapted to coaxially fit with the first filter part and comprising a cavity, the cavity adapted to maintain non-gaseous substance that is moving along with the suction airflow inside the filter, wherein the first filter part and the second filter part jointly define an outlet channel at a bottom of first filter part, the outlet channel adapted to direct the suction airflow outside the filter. In this way, the food particles/bubbles can be prevented from entering the vacuum module, while the suction airflow is allowed to freely flow to the vacuum module.

Provided is a suction and removal apparatus which reduces the risk of orally inhaling highly active pharmacological substances attached to the garments and re-scattered while changing the clothes and prevents the leakage of such powder to the external environment. The suction and removal apparatus is for sucking and removing in a closed room powder attached to the garments of a person, and includes a suction device, a suction head containing a high efficiency particulate air (HEPA) filter and having a suction port, and a flexible tube connected between the suction device and the suction head. The suction port of the suction head has a cap that closes the suction port, the connection between the suction head and the flexible tube is attachable and detachable, and the suction device is installed outside or inside the room and the suction head and part of the flexible tube are installed inside the room.

[Object] To obtain a filter element having a simple configuration that is capable of reliably preventing a liquid collected by a filter member from being mixed once more into compressed air that has been purified.

[Solution] An upper end cap 23 including an inner filter member 7 that surrounds a middle space portion 6, an outer filter member 8 that surrounds the inner filter member 7, and an introduction port 31 for introducing compressed air into the middle space portion 6, and a lower end cap 24 that closes a lower end portion of the middle space portion 6, an outer periphery of a lower end portion of the inner filter member 7 being surrounded by an inner wall 37, an outer periphery of a lower end portion of the outer filter member 8 being surrounded by an outer wall 38, an upper end surface 38a of the outer wall 38 being positioned higher than an upper end surface 37a of the inner wall 37, a liquid discharge passage 25 being formed between the outer wall 38 and the inner wall 37, the liquid discharge passage 25 being in communication with a liquid discharge hole 25a that open to an underside of the lower end cap 24.

An adaptable vacuum cleaning unit featuring adjustable debris can egress direction, a filter canister assembly having multiple canister doors and vacuum inlet ports, a canister mounted vacuum producer, and a debris can lifting and locking bar. The vacuum cleaning unit separator assembly includes a separator filter canister assembly mounted to a rotatable base assembly having a debris can, whereby rotation of attachment of the base assembly to the filter canister assembly allows the orientation of the debris can to be rotated relative to the position of the separator filter canister assembly. The casing of the separator filter canister assembly has multiple access doors and vacuum inlets. The vacuum cleaning unit further features lifting lugs around the top edge of the filter canister assembly and forklift slots in the base of the unit. The adaptable vacuum unit also includes an adjustable speed vacuum producer that permits control of the rate of air flow.

A filter for filtering a fluid that is removed from a vacuum enclosure in an autoclave has a rigid housing comprising of a main body and a lid or cap. The rigid housing defines a filter interior, an inlet, and an outlet. The inlet and outlet arranged such that the fluid has to make at least one turn as the fluid flows in the filter interior. Filter media in the interior catches debris. The filter is constructed to withstand the high temperatures and pressures of imparted by an autoclave. A hose port connects the filter to the vacuum system of the autoclave.

Industrial vacuum systems are disclosed, as are filter chambers for industrial vacuum systems and other filtration applications. The filter chambers in these systems use two distinct types of filtering elements within a single chamber, arranging the filter elements such that air cannot pass through a secondary filter element until the air has first passed through and been filtered by a number of primary filter elements. The airflow within the filter chamber may be essentially vertical, and the secondary filter element may be positioned above the primary filter elements. The filter chamber may also include an agitation system for cleaning the filtering elements. The agitation system may be constructed such that it can operate while the system is in use.

An air conditioning filter cleaner for use with an air conditioning system of multiple units. The filter cleaner comprises a brush configured to clean dust from an air filter. The brush is in moving contact with the air filter and driven by a motor. A conduit is connected between the brush and a vacuum source that provides a suction force through the conduit to the brush. The conduit is remotely opened and closed by way of a solenoid or remotely controlled valve. A system controller oversees filter cleaners each connected to a network of ducts, each filter cleaner has an associated valve which opens a duct to which the filter cleaner is connected. A control system selectively actuates the filter cleaner and actuates the associated valve so that dust from the filter is removed to a remote dust collector. Optionally a HEPA filter is provided at a remote collection location.

Disclosed is an air purifier apparatus for purifying air from pollutants. The air purifier apparatus includes a housing having a front side, a rear side, a top side and a bottom side; a back cover having meshes attached to the rear side of the housing; a front cover having meshes attached to the front side of the housing; a rectangular box having one or more frames configured within the housing and in between the back cover and the front cover; an inner rotor motor configured in at least one of the frame of the rectangular box near to the front cover; a backward centrifugal wind wheel configured in at least one of the frame of the rectangular box rotates to suck air through the back cover, wherein the inner rotor motor rotates the backward centrifugal wind wheel; one or more filters configured in between the back cover and the rectangular box to filter air from pollutants received through the back cover; wherein the rotation creates a vacuum in between at least one of the one or more filters and the centrifugal wind wheel, the vacuum results in sucking of the air through the back cover and further releases the purified air through the meshes of the front cover.

A filter cleaning unit for a vacuum cleaner is provided, in particular a construction site vacuum cleaner, wherein the vacuum cleaner includes a turbine for generating a suction air flow and a filter for filtering the suction air flow. A suction channel is provided between the turbine and the filter, wherein the suction channel can be divided by a separating element into at least a first suction part channel and a second suction part channel, wherein the filter cleaning unit has at least one valve unit for opening or closing the suction part channels. A vacuum cleaner with such a filter cleaning unit, and a method for cleaning a filter of a vacuum cleaner with a filter cleaning unit is also provided. A controllable filter cleaning can be provided, in which the cleaning effect can be reinforced by the advantageous interaction of the filter cleaning unit and its components.