Abstract: The present disclosure relates to a breathing assistance apparatus for providing a breathing assistance to a user. The breathing assistance apparatus includes a first/second source configured with a first/second buffer. The first/second fluid is controllably transferred from the first/second source to the first/second buffer using any or combination of a first/second pressure regulators and one or more first/second valves. A mixing chamber configured with the first buffer and the second buffer to receive and mix the first fluid and the second fluid. A delivery tank configured with the mixing tank to controllably receive the third fluid through one or more fourth valves and a third pressure regulator. A user feed mask having an inlet configured with the delivery tank and user's face facilitating breathing assistance to the user.

Abstract: The present disclosure relates to a breathing assistance apparatus for providing a breathing assistance to a user. The breathing assistance apparatus includes a first/second source configured with a first/second buffer. The first/second fluid is controllably transferred from the first/second source to the first/second buffer using any or combination of a first/second pressure regulators and one or more first/second valves. A mixing chamber configured with the first buffer and the second buffer to receive and mix the first fluid and the second fluid. A delivery tank configured with the mixing tank to controllably receive the third fluid through one or more fourth valves and a third pressure regulator. A user feed mask having an inlet configured with the delivery tank and user's face facilitating breathing assistance to the user.