Nearly the first question I get asked when someone is comparing a brand is what's the lowest temperature the cryosauna goes to or what is the lowest temperature the skin temperature will be after 3 minutes.
This is why I had to write this site. Even if it does cool the person to 30 degrees people don't take into consideration the type of flow (directional, vortex.. whirlpooling), or even consider the fluence of the nitrogen. Some people prefer a 4 minute session and a temperature closer to -190. Some people can tolerate -280 degrees. I would not recommend this type if it is not the vortex type. I have been in one and I would not be able to tolerate a directional type on my body cryosauna. No way.
The average coolness in most of the cryosaunas that are being made range from -190 degrees to -260 degrees. Some people can't even handle longer than 30 seconds in a cryosauna that goes to -260. Most of the places that I have been to have them at -220 for most people.
There are very few have chambers that go downs to -260 or -280. There are reasons for this. Usually it's the cost as those that go down that low will never blow at you but whirl around you and these cost about 20 thousand dollars more than the older generation cryosaunas. The average temperature ones that don't get to that bone chilling temperature can be ok if blown on you since they don't get as cold.
Some cryosaunas have laser sensors that tell the technician your skin temperature. This is a new feature that helps prevent frostbite. It also helps make sure the body does not go under a certain temperature. The temperature of the skin is the only way to tell if a cryosauna is cold enough and the flow is even. If one part of the body is at 38 degrees and another 32 then the flow usually is not even. The whirlpool types are the best insurance against uneven flow. With this type the person does not have to keep turning positions like the older generation types. But, the types that don't make you have to keep turning 1/4 turns during the session will cost over 60 grand.
How to know if your cryosauna has a vortex whirlpool or a more direct contact type of nitrogen output:
The direct contact gives more pins and needle feel during the mid session while the vortex type gives this feeling more towards the end of the session and more afterwards. Note that the vortex types usually are done down to -260 to -280.
Note: getting much colder doesn't mean the cryosauna is better. Many people get great results in the whole body non-nitrogen cryo chambers that don't get near the temperature as the cryosaunas. I urge people to get a cryochamber or cryosauna based on the clientele that is going to be using it. Take my cryosauna quiz. I will recommend a cryosauna or cryochamber based on your answers.
Air/Water Evaporators - for those that don't want to use nitrogen - Read the pros and cons of this type
Nitrogen type cryosaunas - for those that don't want to get a lower temperature than the air/water evaporator types - Read the pros and cons of this type vs evaporator types.