Venturi mask:

Venturi Mask . With the Venturi mask system, oxygen inflow is connected to a specific color-coded entrainment device at the base of the mask that provides a set FI o 2 at a set oxygen inflow rate. Various entrainment devices can provide an F I o 2 of 0.24 to 0.5, with an oxygen inflow of 4 to 15 l/min and a total flow delivered to the patient (including entrained air) of 35 to 45 l/min. If the patient's peak inspiratory flow exceeds this total flow, a lower F I o 2 is inspired. The Venturi ... A Venturi mask is a device that delivers oxygen at a high flow rate, ensuring a constant fraction of inspired oxygen (FiO2) by using Bernoulli's principle to entrain room air, with a maximum FiO2 of 0.6. It is particularly advantageous when a specific FiO2 is required. How useful is this definition? Venturi mask explained The venturi mask , also known as an air-entrainment mask , is a medical device to deliver a known oxygen concentration to patients on controlled oxygen therapy. [1] [2] The mask was invented by Moran Campbell at McMaster University Medical School as a replacement for intermittent oxygen treatment. Dr. The table in the advanced (use slider at the top left) view of this article shows flow set on the Venturi (Air entrainment mask ) – the total flow (O2 flow + air entrained) and the FIO2. This helps demonstrate why at low FIO2 – the Venturi mask provides a far more consistent FIO2 than nasal cannula or simple facemask.