1 unit supplied in sterile package
Speaking valve, infinitely adjustable, with flat base, oxygen supply port and cap.
For insertion in TRACOE stoma and grid buttons (REF 601, REF 602, REF 603, REF 612 and REF 613), TRACOE adhesive carriers (REF 660) and silicone short tubes (REF 580, REF 581, REF 582 and REF 583).
Air supply from the side allows an individually adjustable airway resistance.
Not for use by laryngectomised patients.