What is second breathing in a sauna?
Second breathing in a sauna is a specially designed system that supplies fresh air directly to a person’s breathing zone. It is usually installed under the bench, with the air outlet positioned in the head area so that a person lying in the sauna can breathe fresher air.
It is important to understand that second breathing is not a complete sauna ventilation solution. It is an additional comfort feature that improves well-being during heating or sauna whisking sessions.

How is second breathing different from sauna ventilation?
Sauna ventilation is essential for ensuring air circulation throughout the entire room – it regulates airflow, humidity, and temperature. Meanwhile, second breathing works locally and is focused on a specific person.
In other words, ventilation takes care of the entire sauna, while second breathing takes care of your comfort during sauna whisking.
How does second breathing work?
The system works on a simple principle – fresh air from outside is directed through a pipe into the bench area. From there, it enters the breathing zone through a special opening or diffuser.
The air is usually supplied in a gentle flow to avoid discomfort, yet effectively refresh breathing even at high temperatures.

How to install second breathing in a sauna?
To install this system properly, it is important to follow a few key principles:
- Air intake: air should be taken from a clean environment – outdoors.
- Pipe: stainless steel pipes are most commonly used and installed under the bench.
- Outlet: installed on the bench surface in the head area.
- Control: it is recommended to use an adjustable damper to control airflow.
A properly installed system operates quietly and unobtrusively, yet significantly improves the sauna experience.

Common mistakes
- Confusing it with general ventilation and using it instead of it.
- Incorrect air intake location (too cold or polluted air).
- Too strong airflow causing discomfort.
- Incorrect outlet placement – not in the head area.
What are the benefits of second breathing?
This solution is especially valued by experienced sauna users and professional sauna masters for several reasons:
- Easier breathing: fresher, oxygen-rich air is supplied.
- Longer sauna sessions: reduced feeling of stuffiness.
- Better sauna whisking quality: the person can relax more deeply.
- Higher level of comfort: considered an advanced sauna solution.

Is it worth installing second breathing?
If the sauna is used regularly, especially for sauna whisking, second breathing can significantly improve the experience. It is not an essential element, but for those seeking higher comfort and quality, it becomes a highly valuable solution.
The most important thing is to remember that this system works as a supplement, not as the main sauna ventilation.

