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Image Library O2 Encyclopedia Quick Reference Cards O2 FAQ Resource Library COVID-19 Resources COVID-19 Guidelines Dashboard

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Sharing Toolkit Job Aid Builder O2 Calculator Open Oximetry

Image Library

This image library provides original and curated free images for educational purposes.

O2 Encyclopedia

Everything you want to know about oxygen supply and respiratory care in this open-access, living document that includes original content from OCC and curated content from WHO, UNICEF and other O2 authorities.

O2 FAQ

Up to date, expert answers to frequently asked questions about O2 supply systems, respiratory care and pulse oximetry written by OCC & collaborators.

Resource Library

Browse our library of curated and original content on critical care, oxygen and COVID19.

COVID-19 Resources

We have compiled and created open access, peer-reviewed COVID19 content with relevance to resource-variable settings

COVID-19 Guidelines Dashboard

This resource compiles COVID19 guidelines from leading global authorities and consolidates them into a single recommendation based on concordance.

Sharing Toolkit

Use this tool to easily customize, rebrand and embed OCC features (e.g. O2 calculator, FAQs, resource libraries) into your organization's website in under a minute.

Job Aid Builder

Use the tool below to create your own customized and personally branded educational job aids on a wide range of topics.

O2 Calculator

Use this tool to estimate oxygen supply, demand, cylinder size and duration and much more at the facility or national level.

Oxygen FAQ

Up to date, expert answers to frequently asked questions (FAQ) about oxygen supply systems, respiratory care and pulse oximetry written by OCC & collaborators.

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Oxygen Consumption & Cost Calculations

What is a high pressure vs low pressure oxygen source?

High pressure oxygen sources are capable of delivering oxygen at ~50psi/4bar to a device. These include oxygen cylinders (via regulator), oxygen plants via a compressor, liquid oxygen (via vacuum insulated evaporators) and very few portable oxygen concentrators (via additional compressor). High pressure oxygen is required for most ventilators, high flow nasal cannula and non-invasive positive pressure ventilators when taking care of critically ill patients.

Low pressure oxygen sources deliver oxygen at far less than <50psi/4bar. These include oxygen from a low flow flowmeter or a portable oxygen concentrator. Generally, these cannot deliver high enough oxygen concentrations to take care of severely hypoxemic patients.

***Some ventilators (e.g. LTV2200, Zoll 731) can operate with either high pressure or low pressure oxygen input. Other ventilators (e.g. PB560) may only be capable of utilizing a low pressure oxygen input. Of note – when utilizing low pressure oxygen input, some ventilators may not be able to provide high enough concentrations of oxygen to care for critically ill patients. Check manufacturers’ reports for maximum oxygen concentration delivery.

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