A&T Respiratory offers comprehensive courses, webinars, conference and resources for mastering respiratory care.
Select any oxygen delivery device to get the estimated FiO₂ and flow rate. Covers 17 devices from nasal cannula to HFNC and non-rebreather masks.
Enter values below and click the button to get your result.
For educational reference only. Always verify results with your clinical team and follow your facility's protocols.
Select the oxygen delivery device from the dropdown
View the estimated FiO₂ percentage and flow rate
Use this as a reference for clinical decision-making
FiO₂ values are estimates — actual delivery depends on patient's minute ventilation and device fit
High-flow nasal cannula (HFNC) can deliver up to 100% FiO₂ at ≥ 15 L/min
Non-rebreather mask delivers ~90% FiO₂ only when the reservoir bag is full
Venturi masks provide the most precise FiO₂ delivery due to fixed entrainment ratio
Titrate FiO₂ to maintain SpO₂ 92–96% in most patients (88–92% in COPD)
Sharpen your clinical skills and earn Continuing Education Units (CEUs) through our expert-led respiratory therapy lectures — available online and at destination conferences.
Use our free CEU Tracker to manage your continuing education and never miss a renewal deadline.