Funnels for many purposes The Geovent Extraction Funnels are available in the following dimensions: 80, 100 and 125 mm. The Funnels may be connected to a Coupling, ensuring high mobility for the operator, where conventional extraction arms cannot be used. The Funnels are executed in aluminium/steel and are powder enamelled (RAL 1007). Available with/without damper and magnet. Funnels with magnet ensure the operator a high degree of freedom, since it may be attached to both horizontal and vertical magnetic surfaces, close to the source of pollution (see photograph below). The Alu-Funnel may be mounted on one of the Geovent ASA-Arms. Alu funnel with magnet