Anaesthesia General 79a4d6e0 Maximum 02 concentration attained in venture mask is? A 90% B 100% C 60% D 80% High-Yield Explanation 60% REF: Ajay Yadav 2nd ed p.35 Equipment and oxygen delivered in % * Nasal canula - 44% * Venturi mask - 60% * Oxygen mask - 60% * Ventilators - 100%