Water For Humidafication- AVAPACK Water for Humidification 340ml- prefilled humidifiers combine an easy-to-use adapter with choice of two sterile water reservoir bottle sizes. The micro-diffuser produces smaller bubbles and greater surface agitation for quiet operation and high humidity output. Humidifier adapters incorporate audible alarm to alert clinician to flow restriction or occlusion of humidifier or tubing. Reservoir bottles have built-in oxygen tubing connectors.