P3 International P0270 Manuel D’Utilisation

If the air is at a relative humidity of 40%, then the dew-point 

temperature is only 43°F. The walls and ceilings would therefore have 

to be significantly colder for the air to reach its dew-point and for water

droplets to form. 

Tips for active heating and ventilation:

●

Check the dew-point! Surfaces of walls should not fall below a

temperature of 59°F.

●

Avoid shutting off the heat completely when leaving the house for

extended periods of time.

●

Ventilate in all weather conditions, even if it’s raining.

●

Open the windows for a short time to air the room. A partially

opened window does not have the desired effect, wastes heating 

energy and can even promote the formation of mold. 

●

If the room air is too dry, particularly in the winter, then electrical

air humidifiers are recommended, since airing at low temperatures

will tend to decrease the humidity further. 

●

When airing a room, a few minutes should be sufficient. Check

the value indicated on your Mold Alert thermo-hygrometer.

1.  Select °F/°C and place the audio alarm switch on the back of the

unit in “on” mode.

2.  Slide off front compartment and install 2 batteries 1.5V AA. Once

these are in place, the frowning face on the display will light up 

briefly and the alarm will sound for 2 seconds.

3.  Replace battery compartment cover.

4.  Remove the protection film on the display.

5.  The unit is now ready to use.