Two parallel-spaced sheets having complementarily flanged peripheral portions forming edge intake structure and an air pump for exhausting the space between the sheets comprise an open-air fume barrier for disposition broadside between two points to isolate the points ventilatively to the extent necessary, as in preventing gasoline fumes from reaching an open flame but at the same time avoiding as much as possible any disturbance of the air at either of the points; both a specially shaped upright laboratory embodiment and a circularly symmetrical gasoline dispenser model are disclosed.
A ventilation system for use by artists when working with paints and solvents is disclosed. The system includes a palette assembly wherein a palette is mounted on the inside of a housing which is connected to a blower so as to create a negative air pressure in the housing to force harmful vapors through the housing, into the blower, and away from the artist. The system also includes a respiration unit to be used by the artist when mixing paints and solvents or painting with them. The unit includes a compressor (air pump) which is placed in clean air and provides a supply of air, a filter for further purifying the air, and a mask for receiving the fresh air for use in a studio. In an alternate embodiment, the mask further includes rebreather bag to ensure the user of a sufficient supply of purified air at lower SCFM output.
