Bubble Humidifier Bottle (Green Lid with 6 PSI Safety Valve) for Oxygen Concentrators

The Green Cap Bubble Humidifier from Drive is transparent so it is easy to tell when it's time to refill. The 6 PSI Pressure Relief Valve is ideal for applications where longer lengths of tubing can increase back pressure. Drive Green Lid Humidifiers also feature an ergonomically designed, durable plastic flowmeter nut so they're easy to attach and remove from your oxygen system for refilling, cleaning and replacement.