GV 28 - air compressor with adjustable additive injector.
An air compressor forces pressurised air through, for example, a wet insulation layer of a floating plaster floor or through other hollow spaces in order to dry them.

With a patented adjustable injection device our additive Makromol is added to the air stream in order to eliminate bad smells and to avoid creation of mould. Also useful in continuous operation in rooms with bad smells to make life more comfortable. Can be operated on any 230V socket.

GV 25c - Same as described above, with adjustable additive injector for connection with air compressor.
European patent No 0427095B1