Abstract: In a dentist's surgery, a treatment room, and premises where different chemicals are handled or where welding or soldering is performed there are a number of pollutants. In accordance with the invention, these pollutants are removed by an endless air-jet circuit (5), which during its course passes a treatment locus as well as a filter.
Type:
Grant
Filed:
March 6, 2000
Date of Patent:
April 26, 2005
Assignee:
Biometron AB
Inventors:
Tomas Blomqvist, George Kinigalakis, Per Hvåss