In the winter months, not only the temperature is lower, but also the water content in the ambient air. If the moisture content in the air drops, efficiency decreases. This affects people just as it affects machinery.

Relative air humidity is particularly important in the processing of hygroscopic materials, which can change their consistency depending on climate conditions. The consequences of this can be unpleasant and cost-intensive.

The humidification theory

External air supply in the winter WITHOUT air humidification
When 1 m³ of external air with an average temperature of -5° C and a relative air humidity of 80 % is fed to a hall and heated to 20° C, the consequence of this is that the relative air humidity, at the same water content per m³, drops to 14 %.

External air supply in the winter WITH MERLIN air humidification
To achieve a desired ambient air humidity of 55 % rF at 20° C, each m³ of fresh air supplied, be enriched with 6.97 g of water, to reach the required water content of 9.56 g/m³.