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7. VENTILATION

The possible high temperature of the water in the spa (approximately 

39 ºC) leads to steam condensation.

The spa room must have adequate ventilation. If it does not, it is rec-

ommended that you install a dehumidifier to keep the air humidity at 

a constant temperature and prevent steam from condensing on the 

ceiling and on the floor.

For the correct maintenance of the wood, the relative air humidity in 

the room must be kept below 65% when the spa is not being used. 

During use and due to the evaporation caused by the hydromassage 

and the movement of the water, this value normally reaches 90 or 95%.

The air humidity can be kept constant by the use of fans controlled 

by hygrostats or dehumidifiers adapted to the size of the room. Your 

installer or distributor can offer you advice on this. If the room has air 

conditioning, the condenser is not necessary. If the spa is outdoors or 

in an open space, these apparatuses are not necessary.

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