
Bathrooms are places where people take baths and wash their possessions. As the water is used regularly in the bathrooms for bathing and other purposes these are places which are full of moisture. Water and moisture can cause moulds and mildews in the walls, ceilings and other areas of the bathrooms. Moulds and mildews can weaken the structure of the bathroom like the walls, floors and ceilings and these have to be removed and prevented from breeding at all.
Ventilating the bathrooms becomes very important as excess moisture in the bathrooms can give rise to an unhealthy environment of breeding. Since ancient times bathrooms have been ventilated naturally by creating openings in the walls and the ceiling from where the air inside the bathroom which is moisture laden can escape. These days in Australia where people are mostly prosperous, exhaust fans along with HVAC systems are used to ventilate the bathrooms. While exhaust fans and HVAC systems can consume electricity, there are ventilation fans that are powered naturally. Some ventilation fans harness the pressure differences between the indoors and the outdoors to power them.
Absence of proper ventilation in the bathrooms can lead to a lot of diseases in the humans who use these places. It is common for people to contract asthma or allergies in the absence of proper ventilation. Proper ventilation is important for the health of the buildings and the health of the humans. Proper ventilation systems that can bring in the fresh air and take out the stale air laden with moisture. There are damp rods that warm the air inside the bathrooms and thus leading to expansion of air within the bathrooms that pushes out and in the process fresh air from the outside is pulled in into the bathroom.
The experience of using a bathroom that is well ventilated is very different from using one which isn't. Well ventilated bathrooms have a fresh odour while the bathroom bathrooms which are not well ventilated have an odour that isn't pleasant. Bathrooms that are not cleaned from time to time can be places where diseases can be contracted. Cleaning bathrooms is another aspect of proper ventilation in the bathrooms as there can be spider webs that can block the ventilation holes within the bathrooms. The ventilation ducks in the bathroom have to be kept clear of obstacles so that there is a natural exchange of air between the indoors and the outdoors.
Not using mechanical ventilation in the bathrooms doesn't make much of a difference if the frequency of usage isn't high. Public bathrooms which are used in high frequency have to have some kind of mechanical ventilation so that moisture laden air that fills inside the bathroom can be exhausted out fast. HVAC systems not only ventilate the bathrooms but also control the temperature inside the bathrooms. The southern part of Australia where the temperature can drop quite a lot in the winters are suitable for HVAC systems of ventilation.
Sometimes there are sensors that can sense the amount of moisture in the air and depending on that, these trigger the ventilation systems whether HVAC or some other mechanical form. Bathrooms are places which have to be ventilated while protecting the privacy of the people using these places. Bathrooms cannot be places which are surrounded by see-through windows as these would violate privacy. Ventilation systems have to be installed in such a way that they do not let any kind of privacy violation possible in normal circumstances. Bathroom ventilation is a practice that is done by the ventilation systems makers and those who study related disciplines.