Procurable Components:

Manufacturable Components:

Component	Medical Equivalent	Hardware Equivalent
One-Way Valve	One-Way Valve Respironics Pressure Valve (22 mm) – The CPAP Shop Hudson One-Way Valve (22 mm OD to 22 mm ID) – RC Medical Philips Respironic Universal Inline Pressure Valve (22 mm) – DirectHome Medical Philips Respironic Pressure Valve (22 mm) – CPAP.com One-Way Valve (22 mm OD to 22 mm ID) – QOSINA One-Way Valve (22 mm OD to 22 mm ID) –QOSINA	Check Valve Barbed Check Valves (multiple options) – ISM Air Flow Check Valve (10-32 UNF thread) – McMaster-Carr Check Valves (multiple options) – Nordson Medical Check Valves (multiple options) – QOSINA
Pressure Release Valve	Positive End-Expiratory Pressure (PEEP) Valve Clariti PEEP Valves (multiple options) – Armstrong Medical Disposible PEEP Valve (22 mm) – Teleflex PEEP Valves (30 mm) – Ambu CareFusion AirLife Adjustable PEEP Valves (22 mm) – Health Products For You	Pressure Relief Valve for Air Pressure Relief Valve for Air (1/4″ push-to-connect) – McMaster-Carr
Flow Regulation Valve	Medical Flowmeter Chrome Flowmeter (multiple options) – Precision Medical Oxygen Flowmeters (9/16″-18 RH DISS 1240 Outlet Connection) – Tri-Tech Medical	Flow Valves John Guest Polypropylene Ball Valve (1/4″ push-to-connect) – Free Drinking Water Precision Flow-Adjustment Valve (1/2″ barb) – McMaster-Carr Precision Flow-Adjustment Valve (1/4″ barb) – McMaster-Carr Precision Flow-Adjustment Valve (1/8″ barb) – McMaster-Carr Flow Control Valve (1/4″ NPT female thread) – Grainger
In-Line Flow Meter	Medical Flowmeter Chrome Flowmeter (multiple options) – Precision Medical Oxygen Flowmeters (9/16″-18 RH DISS 1240 Outlet Connection) – Tri-Tech Medical	In-Line Air Flowmeter In-Line Flowmeter (Schedule 40 or 80 pipe) – The Pond Outlet Flowmeter with Acrylic Plastic Body (1/4″ NPT male thread) – McMaster-Carr BROOKS Flowmeters (1/8″ NPT female thread) – Grainger
Bacterial/Viral Filters	Bacterial/Viral Filters Main Flow Bacterial/Viral Filter (22 mm OD/22 mm ID) – Allegro Medical CareFusion AirLife Disposable Bacteria Filter – 4MD Medical Bacterial/Viral Filters (multiple options) – Teleflex
Respiratory Profile Monitor	Respiratory Profile Monitor Respironics NM3 – Philips
Connectors 15 mm ID to 22 mm OD 22 mm ID	Respiratory Equipment Connectors Multi Adaptor (15mm ID/22 mm OD) – Allegro Medical Hudson Multi Adaptor (15 mm ID/22 mm OD) – Emergency Medical Products Teleflex Universal Standard Cuff Adapter (22 mm ID) – Medical EShop Flexible Silicone Rubber Connector (22 mm ID) – RC Medical Respirometer Soft Plastic Adapter (22mm ID) – RC Medical