Provided is an apparatus and method for interacting with objects of interest. A filtering apparatus can comprise a channel system, through which objects of interest are able to diffuse. The channel system can comprise a channel of suitably configured non-uniform cross-sectional area along the length of the channel. In some embodiments, the channel system can be provided by a suitably configured porous bulk material. In some embodiments, channel system can comprise an interior chamber comprising filtered objects, where the filtered objects are contained on a first side by a first filtering surface, such as a semi-permeable membrane, and on a second side by second filtering surface, where the cross-sectional areas of a representative channel of the first and second filtering surfaces are not identical. The filtered objects can also be configured to interact with an externally applied body force, such as an electric field acting on charged filtered objects. The channel system is configured to interact with objects of interest on a scale which is smaller than a value several orders of magnitude larger than the mean free path of an object of interest. Some embodiments are configured to interact with particles, such as air molecules, water molecules, or aerosols. Other plate embodiments are configured to interact with waves or wavelike particles, such as electrons, photons, phonons or acoustic waves.

Specialized dust collection systems are provided that include a pulsed air system; at least one diaphragm valve assembly, which functions as the pulsed air valve; and a controller for controlling the diaphragm valve assembly and pulsed distribution of the pressurized air. The diaphragm valve assembly may be controlled by the controller and is operable to selectively deliver pressurized air to the air distribution assembly in short pulses or bursts. The disclosed diaphragm valve assembly can be utilized to improve the functionality of the pulsed air system and the dust collection system.

An apparatus for storing a mask includes a main body comprising a first region and a second region, the first region having a plurality of mask containers, a gas supply pipe having an outer portion outside of the main body, a fan in the first region to propel the gas from the second region to the first region, a filter disposed at a front end and/or a rear end of the fan, a heat exchanger in the second region and configured to exchange heat with the flowing gas, a Peltier element at the outer portion of the gas supply pipe, a first sensor installed in the gas supply pipe upstream of the Peltier element, a second sensor installed in the second region in a lower position to the heat exchanger, and a controller connected to the first and second sensors and the Peltier element.

A filtration system housing is provided for supporting filtration system components. The filtration system is configured to remove particulates from air. The housing comprises a plurality of walls defining a chamber for receiving pressurized air. The housing additionally comprises a reinforcing member at least partially surrounding said walls. At least one of the walls is contoured to include a spatial curvature extending along a portion of the at least one wall.

The present disclosure relates to air filters. More particularly, it relates to air filters including pleated filter media that can be uniformly expanded and contracted. In some embodiments, the air filters are adjustably sized air filter systems. In some embodiments, the air filters can be used in a window opening.

A housing main part of a filter housing has an element receiving space and an adapter chamber. A filter element is inserted into or removed from the element receiving space through a lateral mounting opening. A pre-separator module and the filter element are arranged behind each other along the main flow axis of the fluid to separate an outlet from an inlet of the filter housing. The adapter chamber accommodates the pre-separator module and/or the filter element. The adapter chamber is arranged at an axial end face of the housing main part and is open axially toward the element receiving space and, axially opposed thereto, toward the environment. The mounting opening is surrounded by a cover receiving rim that extends across the adapter chamber. A part of a connecting device within the housing main part is used to attach the pre-separator module to the housing main part.

An air filter arrangement is disclosed. The air filter arrangement includes media comprising corrugated media secured to facing media and defining a media pack having opposite flow faces. Media pack arrangements including such media are described. Also described are filter cartridges including such media packs and air cleaners including the filter cartridges. Advantageous housing seal arrangements having a pinch seal member and forming a trough are described. Methods of assembly and use are also provided. Also, systems of use are described.

Described is a housing (18) for a separating device (12) for separating fluid from a gas, a housing cover (28) and a connecting part (16) of a device (12) and a device (12) for separating a fluid. The housing (18) has at least one first gas passage (82), which is centrally disposed relative to an axis (30) on a connection device (14). The housing (18) has at least one second gas passage (52), which is disposed radially outside the at least one first gas passage (82) with respect to the axis (30). The housing (18) has at least one fluid outlet (36, 48, 64) for fluid separated from the gas, which is disposed radially between the at least one first gas passage (82) and the at least one second gas passage (52) with respect to the axis (30). Between the at least one second gas passage (52) and the at least one fluid outlet (36, 48, 64), at least one housing-side fluid outlet sealing part (66) of at least one fluid outlet sealing device (92) is disposed, which is configured to sealingly interact with at least one corresponding connection-side fluid outlet sealing part (68) of the connecting part (16), which is provided for connecting the housing (18) with the connection device (14).

The disclosure provides a multi-function ductless enclosure apparatus. Its main purpose is to be used as a paint spray booth to capture excess paint, pass it through filters with the use of a fan and then exhaust the ensuing clean air out, back into the room air. This booth is foldable and light weight and can be moved to a different location in minutes. It can also be transformed to serve many other applications with the use of a few accessories thereby saving the end user from having to have several booths (saving counter space) and also saving him from having to spend a lot of money buying many booths for different applications.

An operating and changing apparatus for a filter body located at a filter position that displays a filter body axis of symmetry located at a filter position and in which at least one particle filter is integrated in order to remove particles from a particle-laden fluid. The filter body exhibits at least one fluid-permeable filter body opening and at least one fluid-impermeable filter body wall section. The operating and changing apparatus includes a housing that the fluid can flow through but is otherwise impermeable with a flow channel in which the filter body is so positioned that the fluid can flow through the particle filter. In the housing, the flow channel with at least one flow inlet to allow the particle-laden fluid to flow in and at least one flow outlet to allow the particle-free fluid to flow out is arranged in such a way that the fluid flow between flow inlet and flow outlet in the flow channel runs through the particle filter of the filter body. The flow channel exhibits a channel symmetric axis which runs parallel/collinear with the filter body's axis of symmetry. The flow inlet and the flow outlet are positioned offset to each other, relative to the channel symmetric axis. The flow channel and the housing incorporate a filter insertion opening and a filter disposal opening, whereby the filter insertion opening and the filter disposal opening are positioned in geometric alignment along the channel symmetric axis. A change of the particle filter takes place through exchange of the filter body with an exchange filter body with a replacement filter whereby the replacement filter body can be pushed through the filter insertion opening into the flow channel and whereby the filter body to be replaced can be pushed out of the flow channel through the filter disposal opening by the pushing-in of the replacement filter body. During the pushing in/pressing out of the filter body, the flow inlet and the flow outlet will be blocked fluidically by the impermeable filter body wall segment until the replacement filter body has reached the original filter position. As a result of this, the flow channel has not opened during the change of the particle filter and the changing of the particle filter is accomplished almost entirely without interrupting the flow.