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7338358 |
Apparatus for air purifying and ventilating
Disclosed is a combination air purifier and ventilator. The air purifier in accordance with the present invention includes a case being provided on a ceiling or a wall and having a fan therein, a...
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7147553 |
Portable smoking room
A portable smoking room having a flexible enclosure defining a room detachably mounted on a frame is provided. A duct is detachably mounted to the frame for transporting smoke laden air within the...
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7001265 |
Air exhaust system
An air exhaust system comprises a chamber. The chamber has side walls, a ceiling, an attic and a roof. The ceiling and roof have air flow apertures. Provided next is a duct with upper and lower...
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6835128 |
Ceiling mounted air filtering and distribution apparatus operated independently of any HVAC system
A modular direct flow clean air delivery apparatus is disclosed that is particularly adapted for use in restaurants, banquet halls, meeting rooms, offices etc., where cigarette smoke and other...
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6770117 |
Ion implantation and wet bench systems utilizing exhaust gas recirculation
Apparatus and method for utilizing recirculated exhaust gas in semiconductor manufacturing system, in a manner substantially reducing the effluent burden on the exhaust treatment system and...
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