Indicated for single patient use on anesthetized patients and respiratory care patients who require a breathing circuit. The product is intended to be replaced at least once every 24 hours. Features: • Hygroscopic HME media traps patient's own moisture, and minimizes heat loss. • Low air flow resistance. • Moisture output greater than 30mg H2O/l (ISO 9360, Vt 750ml). • Calcium chloride treated HME media improves effectiveness. • End tidal CO2 port offers convenient access to airway gases. • ISO standard 15 and 22mm fittings. • Supplied clean and individually packaged. 50/Case.