The disposable filter (No. 50207, ordered separately) initially weighs 1200gm. It absorbs 200gm of isoflurane or halothane, and must be discarded when it reaches 1400gm in weight. Nitrous oxide is not removed.
The Scavenger is supplied with a double Rat Mask, and a Y piece that divides the gas flow into two 15cm silicone tubes, one of which is fitted with a clamp so that only one mask may be used alone, if so desired. The silicone tubes fit directly onto the tube mounts of the Fluovac T-piece.