The invention relates to an extractor fan apparatus for extracting cooking vapours downwards. The extractor fan apparatus comprises at least one fan for aspirating the cooking vapours, an inflow opening for the entry of the cooking vapours into the extractor fan apparatus, a filter seat which is arranged downstream of the at least one fan and on which at least one filter for filtering the cooking vapours can be arranged, and a filter replacement space which extends between the inflow opening and the at least one filter seat, the filter replacement space being configured for the reversible removal of the at least one filter from the filter seat through the inflow opening.

A particulate capturing device includes: a vent pipe having a flow path space through which air containing fine particles flows; an air flow generating portion configured to generate an air flow flowing in a direction in which the air is to he sent in the flow path space of the vent pipe; and a collecting portion disposed in a state of crossing the flow path space of the vent pipe in a direction intersecting the air flow, and configured to collect the fine particles contained in the air, in which the collecting portion is formed of a vent plate having a thickness of 5 mm or less and having plural vent portions with an opening size of 0.005 mm or more and 0.1 mm or less.

A particulate capturing device includes: a vent pipe having a flow path space through which air containing fine particles flows; an air flow generating portion configured to generate an air flow flowing in a direction in which the air is to be sent in the flow path space of the vent pipe; and a collecting portion disposed in a state of crossing the flow path space of the vent pipe in a direction intersecting the air flow, and configured to collect the fine particles contained in the air, in which the collecting portion is formed of a metal vent plate having plural vent portions with an opening size of 0.005 mm or more and 0.1 mm or less.

An inflator for generating inflation gases for a safety device includes a housing having an internal cavity including a combustion chamber and a filter chamber. A filter is disposed in the filter chamber. A separating member is disposed in the housing on a first axial side of the filter and separates the filter chamber from the combustion chamber. An insulating member is disposed in the filter chamber on a second axial side of the filter. The second axial side is opposite the first axial side. The separating member is coupled to the insulating member.

The present invention is a dust abatement device that secures over a container. Powdery material, such as plaster, cement, grout or the like, is poured through the device, and mixed with water inside the container. The device has a mounting sleeve and radial manifold. The manifold forms a radial pneumatic channel with a circumferentially disbursed air intake that generates a radially uniform airflow to draw in airborne dust that would otherwise escape to the surrounding air. The manifold is connected to a vacuum with an air filter, and generates a dust shield zone above and around the device, which only extends down from the manifold a few inches. The manifold also funnels material and water into the container, and forms an inner eave that spaces material and water from the air intake, and forms a splash guard to retain upwardly projected splashes of material and water inside the container.

The disclosed apparatus make possible the maintenance, repair, alteration, and upgrade of walls and wall mounted facilitates within hospitals and cleanrooms while occupying a minimum area. In one embodiment the apparatus is a six-sided box with an open side, a transparent side, and a side with two hand ports. To operate, the apparatus is placed, from the open side, against the wall or the wall facility that needs repair or upgrade. Afterwards the air inside the apparatus is vacuumed to lower the air pressure with respect to the surrounding pressure before the hands of a repairman enters the apparatus through the two hand ports. Repair can start at this time while the apparatus maintains a negative inside air pressure and while no particles of contaminants can escape the apparatus. The vacuumed air may be released back into the room or hallway after it is filtered.

An internal combustion engine exhaust modification system for transforming exhaust emissions from an internal combustion engine into modified exhaust emissions. The exhaust modification system includes a housing extending between inlet and outlet ends thereof. The system also includes an impeller rotatably mounted in the housing, and a filter subassembly downstream from the impeller. The filter subassembly removes part of particulate matter and liquid droplets in the exhaust emissions to transform the exhaust emissions into modified exhaust emissions. The system includes a conduit extending between an inner end thereof positioned to direct cooler air exiting therefrom into the housing toward the filter subassembly, and an outer end thereof. The system also includes a funnel subassembly having a funnel body for directing the cooler air into the outer end of the conduit.

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 vacuum pump includes a casing having a first inlet orifice and a second outlet orifice to allow a flow of air, and in the interior of which a filtering element is mounted in a removable way. At least one orifice of the casing selected from among the first inlet orifice and the second outlet orifice is located on an exhaust lid. The exhaust lid is removable from the casing but integral with the filtering element. The connection between the casing and the exhaust lid is not tight. A cartridge for the vacuum pump includes an exhaust lid integrated in the closure nozzle of the filtering element. The connection between the casing and the exhaust lid is not tight.

A vacuum cleaner includes a suctioning unit, a main body including a cyclone unit for separating dust from the air suctioned through the suctioning unit, a body forming a dust container for storing the dust separated by the cyclone unit, and a body cover for opening and closing the lower side of the body. A filter unit is arranged in the body for filtering air. An actuating unit is configured to move in the body along a space between the outside of the filter unit and the inner circumferential surface of the body.