Adjustable device for exhaustion and/or supply of gas

Adjustable duct assembly for fume and dust removal

Adjustable exhauster arm assembly

Adjustable local extraction device

Air and liquid evacuation apparatus

All-purpose conduit for conveying harmful fumes or gases...

All-purpose conduit for conveying harmful fumes or gases...

Apparatus for generating at least one jet of gaseous fluid

Apparatus for removal of second hand smoke

Apparatus for the reduction of tobacco smoke

Arrangement for extraction of harmful gases from workplaces

Arrangement in fume extraction arms

Articulated duct fume collection and exhaust apparatus

Ashtray assembly for use with smoke removal apparatus

Automatic sash return for work chamber

Clean work booth

Continuous seal vehicular exhaust distribution system for buildi

Coupling assembly

Device at exhaust-gas extraction hoses

Device for connecting an exhaust suction hose to the exhaust pip