The process of the respiratory air conditioning as a process of heat and mass exchange at the interface inspired air-airways surface was studied. Using a model of airways (Olson et al., 1970) where the segments of the respiratory tract are like cylinders with a "xed length and diameter, the corresponding heat transfer equations, in the paper are founded basic rate exchange parameters*convective heat transfer coe$cient h A (W m\ 3C) and evaporative heat transfer coe$cient h C (W m\ hPa). The rate transfer parameters assumed as sources with known heat power are connected to air#ow rate in di!erent airways segments. Relationships expressing warming rate of inspired air due to convection, warming rate of inspired air due to evaporation, water di!used in the inspired air from the airways wall, i.e. a system of air conditioning parameters, was composed. The altitude dynamics of the relations is studied. Every rate conditioning parameter is an increasing function of altitude. The process of di!usion in the peripheral bronchial generations as a basic transfer process is analysed. The following phenomenon is in e!ect: the di!usion coe$cient increases with altitude and causes a compensation of simultaneous decreasing of O and CO densities in atmospheric air. Due to this compensation, the di!usion in the peripheral generations with altitude is approximately constant. The elements of the human anatomy optimality as well as the established dynamics are discussed and assumed. The square form of the airways after the trachea expressed in terms of transfer supposes (in view of maximum contact surface), that a maximum heat and water exchange is achieved, i.e. high degree of air condition at "xed environmental parameters and respiration regime.