COMBINED SYSTEM OF AIR DELIVERY AND AIR CLEANING Russian patent published in 2010 - IPC A61B7/02 A61M16/00 

FIELD: mechanics.

SUBSTANCE: group of inventions relates to the means of air delivery and cleaning. The system contains an electric air-cleaning respirator, self-contained breathing apparatus, on-back frame, electric air-cleaning respirator and self-contained breathing apparatus, they both are established and transferred on on-back frame; mounting unit which connects with the possibility of removal the electric air-cleaning respirator to the on-back frame, and the front part which is connected for communication through the fluid medium both with the high-pressure bottle and with electric air-cleaning respirator. The electric air-cleaning respirator is connected to the front part by the first hose connection, and the self-contained breathing apparatus is connected to the front part by the second hose connection. The method consists in the fact that, first some breathable air is delivered to the user through the front part, using the electric air-cleaning breathing apparatus, electric air-cleaning respirator is switched off and a self-contained breathing apparatus is activated for switching supply of breathable air to the user without interrupting the flow of air to the user.

EFFECT: ensuring the use in extreme conditions.

31 cl, 18 dwg