In these rooms, unlike the kitchen, supply ventilation is not required. The hood is usually installed, or (if for some reason it is impossible), a ventilation grill is made on the door at the bottom of the bottom.
The hood fan should be in the distance from the shower or bath, for showers, if you use fans built into the duct, it is only low -voltage, since in raw place it is easy to get a long -range shock for health and life. You can also install a slightly more expensive fan in the “spray -proof” shell.
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You can equip the fan with a humidity control system – if the permissible norm is exceeded, the ventilation is turned on automatically, when the norm is reached, it turns off. This will help forgetful to save electricity and not spoil the bathroom or toilet with mold due to constant increased humidity. In the toilet, a fan equipped with a timer will be ideal – the humidity is not high here, but to wait for time to turn off the fan, few people want to turn off it himself.
The fan in the ventilation system cannot be sealed forever – it must be periodically cleaned from dust, otherwise it will first cease to give out design power, and then it will even burn out from the strangle.