Disclosed are a pollutant capturer and mobilizer and method of mobilizing a polluted gaseous substance from one location towards another location and capturing one or multiple types of polluting substances, such as CO.sub.2, from an atmospheric body of polluted gaseous substance or from exhaust of vehicles, chimneys, or stacks and thereby combat the negative health, environmental, and economic impacts of the of the polluting substances on communities. Wet or dry embodiments of the pollutant capturer and mobilizer utilize wet or dry pollutant capturing components, respectively, to capture one or multiple types of polluting substances from a body of polluted gaseous substance. Flow establishing devices can be used to set the body of polluted gaseous substance in motion through the pollutant capturing component. The pollutant capturer and mobilizer may also be mounted on any type of vehicles, with or without using flow establishing devices.

Air filters, and air filter devices for use in helicopters, and methods of use, are disclosed.

An oil sequestering, air-drying cartridge device comprises a pair of tandem fluid diodes for respectively preventing backflow of moist air into an oil coalescing filter and preventing backflow of dry air into a desiccant material. The device comprises an outer cartridge skin and a middle shell concentrically nested between the cartridge skin and an inner shell. The middle shell houses channel walls having offset wave-like contours that prevent backflow of moist air into the oil filter, and the inner shell comprises similar channel walls that prevent backflow of dry air into the desiccant, which is positioned between the inner and middle shells.

A filter module, including a plurality of filter elements for separating overspray from an air flow, the filter module including a reusable and cleanable frame configured as a support structure for components for collecting overspray, and a plurality of components inserted into the frame for collecting overspray, wherein the components for collecting overspray are at least filter elements and linings in the frame, which are configured as disposable, single-use products the filter elements form at least a first filter stage, and all the surfaces of the frame which are exposed to the air flow upstream of the first filter stage are provided with the linings such that the surfaces of the frame are protected against overspray.

A coalescing filter element (300) with double drainage layers, including an inner coalescing component (1) configured to captured a large amount of liquid in gas, and an outer coalescing component (2) configured to coalesce and filter a small amount of liquid remaining in the gas. The inner coalescing component (1) and the outer coalescing component (2) are cylindrical structures disposed in a vertical direction and opened at two ends. The outer coalescing component (2) is sleeved on an outer side of the inner coalescing component (1), and an annular drainage space (3) is formed between the inner coalescing component (1) and the outer coalescing component (2). A top end cap (4) is provided on top ends of the inner coalescing component (1) and the outer coalescing component (2). A bottom end cap (5) is provided on bottom ends of the inner coalescing component (1) and the outer coalescing component (2). The bottom end cap (5) is provided with a gas inlet (503) communicated with an interior of the inner coalescing component (1).

Referring to the figures generally, a rotating filter cartridge includes a first endcap, a second endcap, and a filter media. The filter media is positioned between the first endcap and the second endcap. The filter media creates a mechanical seal between at least one of the first endcap or the second endcap during rotation of the rotating filter cartridge without the use of a potting material. In at least one embodiment, the rotating filter cartridge further includes a body secured to the first endcap and the second endcap. At least one of the first endcap or the second endcap, and the body, may form a pocket that radially pinches the filter media to form the mechanical seal.

Fibrous porous filter elements formed by joining two fibrous porous sections, porous filters comprising the joined sections, filter baskets and filter devices comprising the elements and filters, methods of making the filter elements and filters, and methods of filtration using the filter elements and filters, are disclosed.

A passive phase separator includes an input conduit including an inlet through which multi-phase flow enters the input conduit and a gas conduit formed at an angle from the input conduit. A liquid removal chamber is formed in line with the input conduit. The gas conduit is closer to the inlet than the liquid removal chamber. The liquid removal chamber holds liquid from the multi-phase flow, and the gas conduit carries gas from the multi-phase flow.

A dehumidifier comprising: a water tank with a mounting port facing upward, a machine body including an air inlet and a filter net slot beside the air inlet, and a filter net removably inserted in the filter net slot and covering the air inlet. The machine body is configured to be in one of a plurality of states including an idle state in which the machine body is at least partially accommodated in the water tank through the mounting port and a working state in which the machine body is extended out relative to the water tank through the mounting port.

A dust filter is configured to filter air drawn into a vehicle canister. The dust filter includes a filtration member and a case. The case has an inner chamber for accommodating the filtration member. The case has a drainage port for draining liquid that has infiltrated the inner chamber. The drainage port is at least one opening formed at the bottom of the inner chamber. The case includes a cover that covers the drainage port. The cover has an outlet that opens to the outside. The outlet is lower than the drainage port. At least one baffle plate is disposed inside the cover. The baffle plate has a slope on the side of the baffle plate facing the drainage port, thereby forming a ramp.