How to arrange ventilation in a 42 sq.m gym?

Good afternoon, Nikolai.

There are certain ventilation standards for gyms. There should be 30 m3 of air per person, with full replacement three times per hour, which will be 90 m3 / person. We calculate the total cubic capacity of your room 42 m2 x 3.5 m = 147 m3. Further, 147 m3: 30 m3 / person = 4.9 people. That is, your gym allows you to simultaneously engage in no more than five people, according to the hygiene requirements for ventilation of sports facilities.

These standards are based on calculations of the accumulation of carbon dioxide during the training of one athlete. There is one tolerance, if the hall is used for preparatory classes, 80 m3 is allowed, while the norm of 30 m3 per student is still valid.

In your case, there is no influx of fresh air, so there will be no circulation of the required volume. It is necessary to install the supply and exhaust system of the required power. Those. 80 m3 x 5 people = 400 m3. The capacity of the installation should be 400 m3 / hour. Since your room is small, a monolithic system will do. An example in the figure.

When buying, please note:
1. Is the heat exchanger freeze protected?
2. The possibility of heating the air.
3. The availability of adjusting the temperature for heating fresh air.
4. The ability to change the direction of air flow.

The presence of these functions will create comfortable conditions for classes. It will be useful to additionally familiarize yourself with this article.