Humidifier for applications requiring flow rates of 6 to 15 LPM. Quiet operation is ideal in any setting - hospital, hospice, or homecare. Relief valve will audibly alert of potential downstream occlusions, automatically reset and continue gas flow. A unique 360 degree rectangular hole diffuser provides superior gas hydration and quiet operation with very low resistance. Uniquely suited to enhance gas hydration for the new generation oxygen concentrators. Can be used with patients requiring high flows delivered via masks. Features: Single patient use - engineered for long-term durability and performance. 360 degree molded low resistance high output diffuser head design - quiet, efficient hydration operation. Functional Range: 6 - 15 LPM. Special diffuser and relief valve design delivers high flows with minimum internal resistance. Less water turbulence and delivery tube rain out - eliminates water spillage through relief valve. Pressure relief valve automatically resets - reduces caregiver time in case of temporary occlusion. Audible pressure relief alert warns of potential patient or equipment hazards. Large quad wing nut connector is easy to grip, reduces chance of cross threading. Jar permanently marked in large print, minimum/maximum water levels - easy to read, durable, will not rub, wear or wash off. D