Cryotherapy done right

Where: Germany
Contractor: MIRAI Intex, s.r.o.


COOLINN wanted to offer the world’s first cold chamber that would be cooled only by air. This solution was not only chosen for the environmental impact it has but also for being highly energy efficient. Mirai Intex was the obvious choice and future collaboration because MIRAI Cold machines are the ideal representation of environmental awareness and becoming pioneers of new technologies. Liquid Nitrogen (LN2), commonly used in cryotherapy applications, comes with the burden of storing high volumes of LN2 in the tank and potential danger of leaks. Air as a refrigerant (R729) not only has 0 ODP (Ozon Depletion Potential) and 0 GWP (Global Warming Potential) but also comes for free. There is no danger related to leaks since the air is distributed directly to the cold chamber.

The project has been planned and engineered by our partner Refolution GmbH. This collaboration allowed us to bring the ultimate natural refrigerant solution and completely revolutionize the Whole-body cryotherapy experience.

MIRAI Cold 15 O/A refrigeration machine has been selected for the world’s first COOLINN cryotherapy installation. MC 15 is an open cycle machine that provides ultra-cold air directly into the chamber, without the need of an evaporator and auxiliary fans inside the chamber. MIRAI Cold open cycle refrigeration machines are supplied with a unique humidity extraction device, which traps the humidity fr om the air in the chamber and extracts it from the chamber mechanically. It is precisely this application of open cycle machines wh ere the humidity extraction device can show its full potential with customers permanently entering and leaving the cryo-sauna. COOLINN cold chamber are two sections: the entrance cooled down to -60 °C and the main section cooled down to -110 °C. As mentioned earlier, the cooling is provided by only one MIRAI Cold 15 refrigeration machine.

There are other options for cryotherapy applications with smaller MIRAI Cold 10 O/W or larger MIRAI Cold 22 O/W.
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