Ventilation in the bathroom: how to properly equip the
Excessive humidity in the bathrooms is inevitable. The more time we spend in this room, the more condensation accumulates on pipes, walls, and ceiling. Properly performed ventilation in the bathroom will create favorable conditions and eliminate the need for constant repairs in the room.

Requirements for modern ventilation
Fresh air in the house is just as important as the water supply, heat and the availability of electricity.
Note! Our health depends largely on what we breathe daily. Rapid reproduction of mold, fungi, the emergence of various diseases in most cases, comes from improperly organized microclimate in the home.
To date, the SNiPs (building codes and regulations) have introduced the following standards in the CIS:
- Ventilation in the bathroom in a private house or apartment is obliged to ensure the intensity of the air flow of 25 m3 / h.
- A bathroom of the combined type should provide an inflow of 50 m3 / h.
Types of ventilation systems
Gone are the days when the only way out was a draft. A modern consumer has the right to choose a system that is most suitable for bathroom design features, as well as for his own taste and possibilities.
By the principle of circulation flow
- Natural movement of air masses. This is where airing is achieved through open doors and windows. The process is extremely inefficient, as no one will decide to air in the cold.
This method will work well only as ventilation in the Khrushchev-type bathroom. In modern apartments, however, the room is isolated, and the air flow will not voluntarily change the trajectory against the laws of physics.
- Forced method. Effectively works with most homeowners for more than a dozen years. The fan built into the air exchange system draws out the exhaust air with steam, which is immediately replaced by fresh air. Due to the simplicity and positive result, forced ventilation in the bathroom is installed most often.
Note! A favorable microclimate in a standard room can create a fan with a capacity of at least 100 cubic meters / hour. Low-power device will work for nothing, not giving the expected result.
Differences of systems according to purpose

- Exhaust type. Here the waste stream is discharged into the mine. Then he goes outside on his own.
- Supply type In this case, a forced influx of clean air from outside the bath is provided. It displaces steam, which then exits into the exhaust duct.
- Mixed counterpart. It combines exhaust with inlet.
If you are installing ventilation in the bathroom with your own hands, do not overdo it with its performance. Too powerful performance, too, will not benefit, and violate the correct microclimate.
Design differences

- Channel system. In this case, ventilation is brought to specific areas that need special cleaning from dust or steam.
- Beskanalnaya system is present in typical residential buildings. Spent couples go through the equipped holes in the walls, proceeding further to the common shaft.
How to choose equipment
Not all hygienic rooms have a standard area.
How to calculate the fan power
For the owners of the smallest, "Khrushchev" baths and owners of apartments in a private house will not fit the same fans.
Therefore, before you do the ventilation in the bathroom, you should make some simple calculations.
- Calculate the area of your bathroom.
- Multiply the result by 5.
- Add 20% to this data.
- The finished figure corresponds to the desired fan power.
Which model to choose

In stores and in the construction market you can see a rich assortment of exhaust devices. Making a purchase, you should not be guided solely by external data.
Design features may prevent not only the use, but also the installation of the device.
- Axial type of instrument. Rotating blades allow air flow along the centerline of the device. The instruction recommends mounting the fan in a ductless ventilation shaft. As a rule, the created pressure does not exceed 50 Pa.

- Centrifugal type. It is equipped with a spiral casing. Differs not only high performance, but also high noise levels.
- The centrifugal – axial counterpart differs from the previous one in its quieter operation, small dimensions and increased productivity.
- The diaphragm unit has a drum-type impeller. Experts do not like him much for low efficiency.
More about fans
For the convenience of owners, manufacturers often supply appliances with useful additions.
It is clear that the price in this case will be higher, but comfort is worth the money spent.
- The humidity sensor (hydrostat) will show the level of moisture in the room.
- The timer will turn the system on and off depending on your desire or on the level of humidity.
- To prevent exhaust air from entering neighboring apartments, it is recommended to install a non-return valve for ventilation in the bathroom. This addition will save you from grumbling disgruntled neighbors.
Varieties of boxes

To bring the channel for the removal of steam directly into the bathroom, you should purchase a special box.
- Plastic box It looks aesthetically pleasing, perfectly conducts the air flow, absorbs noise well. It is possible to choose a round or rectangular section.
- Corrugated analog. The buyer is offered hard and soft options. It has a round cross-section, it is effective when laying short channels in hard-to-reach places.
Installation Features

Since you will be dealing with an electrical device, you should be extremely careful when installing the fan.
If you do not have the skills of working with current, it is better to invite a competent electrician.
- If a special purpose mine is already provided in your home, it is sufficient to simply adjust the exhaust opening to the dimensions of the fan.
- When constructing a new house or remodeling an apartment, diversion channels should be provided in advance, even when designing.
- Wiring from the switch to the device will have to hide. Bare wires and look not aesthetically pleasing, and unsafe.
- During installation, it is recommended to adjust the device, checking it for noise level and high-quality rotation.
- Care should be taken to strictly follow the instructions attached to the purchase.
Conclusion
Even the most high-quality and expensive repairs will quickly become worthless if the ventilation in the bathroom does not work. To take water procedures will be uncomfortable and even harmful to health. Pay attention to the ventilation of the room, and the rest will be a joy.
You will find a lot of useful information in the video in this article, where the details of the topic reviewed are shown in detail.