Not all dehumidifiers achieve this level of performance. You get this effect only with ducted dehumidification units blowing at the foot of the glazed units. The result also depends on the insulation quality of the glazing.

Three parameters need to be taken into account in indoor swimming pools to provide swimmers with comfortable conditions: the water temperature, the air temperature and the room´s relative humidity.
It is very hard to maintain one parameter without taking the other two into account. Take the example of a bathroom: what heats the room is not the bathtub but often a towel dryer.

An indoor swimming pool is used for only a few hours a day, so you need to limit evaporation from the pool. This enables you to cut your water heating costs by half, reduce the running time of the dehumidifier, increase its useful life and reduce your air heating costs by lowering the temperature when the pool is not in use.
The cover also turns the pool room into a living area with a temperature and relative humidity close to those of an ordinary room.

The water of many indoor pools is treated with chlorine- and bromine-based disinfectants. These generate volatile compounds that are both unpleasant to users and have an oxidizing effect on the metal accessories they come in contact with, the lighting, door frames, decoration and dehumidifier.

The regulations for swimming pools open to the public require the air to be renewed at a rate of 22 m3/h per person using the facility. Although there are no applicable regulations for indoor swimming pools for family use, we recommend you to provide for a renewal rate of 1 volume per hour.

For example, for a 12x7 m pool room with an average height of 2.50 m, we need to provide for the extraction of 200 m3/h. This can be achieved with traditional mechanical ventilation.