Practice

How to Use Your FIR Sauna

A simple routine for getting the most from every far-infrared session.

By Zazen Health Solutions 10 August 2026 2 min read
A man in a green t-shirt and swim shorts, a towel over one shoulder, stepping barefoot into an open Zazen FIR cabin in a sunlit room with an oak bench and an olive tree by the window

A far-infrared cabin rewards a little routine. None of this is complicated — it's closer to the kind of thing you'd tell a friend who just had one delivered.

Before you start

Drink a glass of water beforehand, and give yourself a little room either side of a big meal. Loose, light clothing works better than anything heavy — some people prefer a swimsuit or shorts. Set the thermostat somewhere comfortable rather than as high as it goes; a far-infrared cabin is meant to warm gradually, not blast heat.

A simple session routine

If you're new to it, start around twenty minutes and build up toward thirty as you get used to the heat. Three to four sessions a week is a reasonable pace to begin with, and daily use is fine once you're acclimatised. It's common for the body to need a short adjustment window — a few days — before a session starts to feel effortless rather than effortful.

After your session

Step out, cool down gradually, and rehydrate. A few quiet minutes before you rush back into the day tend to make the whole thing feel worthwhile, rather than just another box ticked.

Who should check with a doctor first

  • Speak to your doctor before use if you are pregnant, under 12, or living with adrenal suppression, lupus, multiple sclerosis, or haemophilia.
  • Check with your doctor first if you have metal implants, a pacemaker, or silicone implants.

What the research says

Far-infrared sauna use has a modest but real evidence base in general population studies — not the same thing as evidence for any one cabin, but worth knowing. A large Finnish cohort study linked more frequent sauna bathing with lower cardiovascular mortality over a fifteen-year follow-up, and a 2009 literature review found moderate-quality evidence supporting far-infrared sauna for blood-pressure normalisation specifically, while noting that many other marketed claims lacked strong published support — which is part of why we'd rather point to a handful of specific studies than make a long list of promises.

Sources

Curious about the cabins themselves? Explore Far Infrared.