1. A system for supporting the patient’s airway when the patient is breathing, the system comprising: a respiratory device configured to control the flow of the gas mixture between the surrounding atmosphere and at least one external opening of the patient’s airway, the respiratory device the first resistance to the flow of the gas mixture for the gas mixture flowing from the surrounding atmosphere into the respiratory tract of the patient through a respiratory device, and the second resistance to the flow of the gas mixture and for the gas mixture flowing from the patient’s respiratory tract to the surrounding atmosphere through a respiratory device, the first resistance being much less than the second resistance, so that when inhaling, the gas mixture flows from the surrounding atmosphere into the patient’s respiratory tract through the respiratory device, essentially without delay, and, when exhaling, the second resistance of the respiratory device of the gas mixture flowing from the patient’s respiratory tract to the surrounding atmosphere increases the pressure inside the respiratory patient paths, wherein pressurizing supports the patient's airways； pressure generator arranged to generate a stream of compressed breathing gas； the circuit that forms the channel of the gas mixture between the respiratory device and the pressure generator, through which a stream of compressed respiratory mixture is supplied from the pressure generator to the patient's respiratory tract through the respiratory device, the first resistance being less than approximately 0.025 cm HO / (l / min) at a flow rate of 30 l / min. 2. System1. Система, для поддержки дыхательных путей пациента, когда пациент дышит, при этом, система содержит:респираторное приспособление, выполненное с возможностью управления потоком газовой смеси между окружающей атмосферой и, по меньшей мере, одним внешним отверстием дыхательных путей пациента, причем респираторное приспособление имеет первое сопротивление п
