1. breathing simulator, comprising a first chamber connected to the connection means the respiratory exerciser to user tracks, a second chamber communicating with the first chamber, a third chamber communicating with the second chamber, means for regulating the composition of the breathing gas, the resistance adjusting means inhalation / exhalation installed in channel message of the first chamber with the second chamber, characterized in that the second chamber communicates with the atmosphere, the third chamber is elastic, means regulating the composition of the breathing gas is performed enes as an adjustable throttling device mounted in the channel posts second chamber to the third chamber, and a controlled throttling device mounted in the channel posts second chamber with the atmosphere, and the resistance adjusting means inhalation / exhalation configured to separate and independent control inhalation and exhalation resistance Resistance .2. Exerciser according to claim. 1, characterized in that the resistance adjusting means inhalation / exhalation formed as an adjustable throttle device with a locking element mounted in the passage section of the device with the possibility of displacement in opposite directions relative to the flow cross section plane and an adjustable stop limiting the magnitude of said displacement .3. Exerciser according to claim. 2, characterized in that the locking element is adjustable throttle device is formed as a cantilevered tab, with its elastic deflection in opposite storony.4. Exerciser according to claim. 2, characterized in that the locking element is adjustable throttle device is designed as a freely SET
