Device and method for removing undesirable gases and particles from the air
FI20021911A0
Air purification device and method for cleaning air
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Method and apparatus for preventing the formation of ozone gas
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Air Cleaning System
SK12392001A3
Method and process for separating materials in the form of particles and/or drops from a gas flow
FI912488A0
Procedure for preventing evaporation of liquid from a basin and the dispersion of particulate matter, which is carried by the steam droplets to the environment
FI892781A0
Method and apparatus for preventing dust, such as asbestos dust, flue gas or other air pollutants from being brought into rooms, corridors, halls or the corresponding interior spaces
FI885029A0
Over anchoring foer rengoering av luft, roekgaser eller motsvarande.
FI854581A0
Ionizator for electric uppladdning av ett luftrum samt anvaendning av ionisatorn.
FI844096A0
Filter element mountable in a ventilation opening.
FI844097A0
LUFTVAEXLINGSANORDNING
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Automatisk reglervaexel foer cykel.
FI833816A0
Foerfarande och anordning foer torkning och impregnering av stolpar.
