Salter Labs Bubble Humidifier, with 6 PSI - Safety Valve (REF 7600) 1-Unit Only, Latex Free (RX Edition)

Oxygen Tubing Swivel Connector, Swivel Connector 1220, 1 pack

Salter Labs 9996-1 Humidifier Connector Adapter Tube For O2 Concentrator 12" (Pack of 5)

Salter Labs HIGH FLOW Oxygen Bubbler Bottle - Humidity for Oxygen Therapy

Humidifier Adapter for O2 Concentrator by Invacare

Pivit Humidifier Elbow Connector Adapter with Oxygen Tubing, 9" | Crush Resistant No-Memory Design Helps To Prevent Kinking | Attaches To Most Humidifier Bottles & Continuous Flow Oxygen Concentrators

Oxygen Tubing Swivel Connector, Swivel Connector 1220, 10 pack

25' Oxygen Tubing,Safety Channel, Green, (Pack of 5)

Adult Ultra Soft Oxygen Cannula, green tubing - 7 Ft (Westmed #0556) pk 5

Soft-Touch Nasal Cannula - 7' Adult Oxygen Tubing Standard Connectors (5 Tubes)

Humidifier Connector Adapter Tube For O2 Concentrator 15" (Pack of 5)