The air environment and ways to improve it in the milling workshops of the Kazan felting mill

In the felt shop of the shoe factory during winter time, the temperature at workplaces ranged from 20.2° to 31.1°, relative humidity - from 35.5 to 100%, the air mobility - from 0.06 to 1.0 m / sec. The lowest temperatures were found at the workplaces of the breakers (+20.2°), because cold (unheated) outside air at 3.4-3.9 m/s and 30-32% relative humidity was supplied to these places of constant operation through the air-breathing nozzles. The highest T° was observed at the dryers' workplaces, where they roll the trolleys out of the chambers, where the temperature reached 31-32° when the doors were closed. When looking at the air temperature of all workplaces, it increased towards the drying cells and decreased away from the drying cells. Moisture content in the air exceeding the permissible level of relative humidity according to sanitary standards (not more than 80% for wet shops) was recorded in many workplaces of hammer workers, steamers and shoe dyers.