Section 2-14. Climate, ventilation, air quality etc.

Work premises must be designed and furnished so that each individual workplace, personnel rooms etc. have a satisfactory climate with regard to temperature, humidity, draught, air quality and unpleasant odours, and protection against toxic or hazardous substances etc. When assessing the climate and air quality, consideration shall be given as necessary to the physical strains that the employees are exposed to.
The air in areas where employees work or stay must have a fully adequate oxygen content.
Areas underground where access is permitted must be provided with a continuous supply of fresh air.
Consideration shall be given to the effect of solar radiation so that the employees are not exposed to unnecessary thermal strain.
Where necessary out of consideration for the employees' health, ventilation systems must be provided with fault warning signals.