A lighting system with vacuum intake is provided, having a lighting structure including at least one light-emitting element dimensioned to illuminate a region, and a lighting support structure extending at a first end thereof from the lighting structure and enabling repositioning of the lighting structure relative to a second end of the lighting support structure. The lighting support structure hays an air conduit extending therealong and connectable or connected towards the second end of the lighting support structure to a vacuum system, the air conduit being in fluid communication with a vacuum intake positioned towards the lighting structure.

A method for the preparation of pharmaceutical products is provided that utilizes a machine having a containing liner, a dosing chamber for preparing at least one pharmaceutical product accommodated within the containing liner, and a pneumatic ventilation device for feeding two air flows through the dosing chamber and through the containing liner, respectively. Operation of the pneumatic ventilation device is selectively controlled so that the containing liner has inside a pressure lower than a pressure existing within the dosing chamber and than a pressure existing in the environment outside the containing liner itself.

Embodiments of the inventive concept provides an apparatus for treating a substrate. The apparatus for treating a substrate comprises a housing having a process space therein, a substrate support unit supporting a substrate in the space, a liquid supply unit supplying a liquid to a substrate supported by the substrate support unit, an air flow generation unit generating an air flow in the process space, and the air flow generation unit comprises a first gas supply unit supplying a descending air flow of a first gas in the process space and a second gas supply unit supplying a second gas having lower humidity than the first gas in the space, and when viewed from above, the first gas supply unit and the second gas supply unit are not overlapped each other.

A shaft seal for an exhaust fan. The seal limits leakage from within an exhaust fan housing around an exhaust fan drive shaft that extends between a rotational power source exterior to the exhaust fan housing and a position within the exhaust fan housing. The seal comprises a plenum generally positioned about the exhaust fan drive shaft at the point where the shaft extends into the fan housing; an auxiliary blower comprising a housing, an internal blade driven by an auxiliary blower drive shaft, and an auxiliary blower drive to rotate the drive shaft where the auxiliary blower drive is operatively associated with the rotational power source such that operation of the rotational power sources causes a rotation of the exhaust fan drive shaft and the auxiliary blower drive shaft; and a duct fluidly connecting the auxiliary blower housing to the plenum.

An apparatus including a sensor configured to sense total pressure within an inner chamber of a housing, and to sense differential pressure between the inner chamber of the housing and work area outside of the housing; a computer processor configured to receive signals from the sensor based on the total pressure and the differential pressure; and wherein the computer processor controls the rate at which the flapper oscillates based on the total pressure signal from the sensor, to thereby control the direction of flow of air from the inner chamber of the housing through the plurality of openings of the blade, through the plurality of openings of the teeth, for optimum containment with ultra stable vortex inside the chamber ; and controls the rate at which exhaust damper modulates based on differential pressure signal to maintain constant face velocity at the apparatus user opening and out an exhaust opening of the housing.

A containment booth assembly includes a floor, a plurality of vertical sidewalls, and a plurality of sliding panels corresponding to each of the vertical sidewalls. The plurality of sliding panels define an extendible top portion, the extendible top portion extendible upwardly and configured to interface with a ceiling surface of a room above the containment booth assembly. In a non-limiting aspect or embodiment, one or more of the plurality of vertical sidewalls is rotatably mounted to vertical support beams and define an extendible side portion. The extendible side portion is extendible horizontally and configured to interface with a wall surface of the room beside the containment booth assembly.

A fume evacuation system is designed to remove smoke, fumes, and particulate from a metal-working or other application. The system may include a cart-type base unit or may be incorporated into a fixed or semi-fixed installation that uses suction to draw air (e.g., containing smoke, fumes, and particulate) away from the metal-working application. The fume evacuation system includes a hood that creates an arduous flow path and varying velocity profile, which cools and separates any particulate matter in the suctioned air. The arduous flow path may include multiple sharp turns created by an inner deflector component and an inlet tube. The inlet tube may further contain baffles to cool particulates from the suctioned air.

A fume extraction apparatus (1) which comprises an extraction pump (6), and the apparatus further comprising a sensor arrangement (12a, 12b, 13) to measure a differential pressure across the pump and to measure a speed of the extraction pump, and the apparatus comprising a controller (10) which comprises a data processor, the data processor arranged to calculate a flow rate of air through the pump using the measurements from the sensor arrangement, and to compare the calculated flow rate to a target flow rate, and the controller arranged to issue a control signal to control the speed of the pump so as to better align the flow rate with the target flow rate.

An extractor hood includes a functional unit, a control unit designed to control the functional unit, a hood body, a flap pivotably fastened to the hood body, and a sensor arranged on the flap and designed to detect a state of the flap. The sensor is embodied as an acceleration sensor and connected to the control unit such that the functional unit is controlled by the control unit based on the detected state of the flap.

An extractor hood includes a functional unit, a control unit designed to control the functional unit, a hood body, a flap pivotably fastened to the hood body, and a sensor arranged on the flap and designed to detect a state of the flap. The sensor is embodied as an acceleration sensor and connected to the control unit such that the functional unit is controlled by the control unit based on the detected state of the flap.