The Philips Respironics Optichamber Diamond Spacer is smaller than most conventional spacers and incorporates a stepped mouthpiece, a clear anti-static chamber, and a low resistance expiratory valve that helps measure breath count and breath hold.
Features:
- Low-resistance valves let you breathe easily through the chamber
- can be used by both children and adults
- built-in whistle lets you know if you are breathing too fast
- is made from anti-static material and is easily disassembled for cleaning