Most US cabins run 50–65 °C using far-infrared, sometimes with full-spectrum (near + mid + far IR) panels in higher-end models. Sessions are typically 30–45 minutes, $40–80 single, $200–400 monthly memberships. The 'detox via sweat' claim that drives much US marketing isn't well supported in peer-reviewed literature; the cardiovascular and recovery benefits at high-heat exposure rest more on traditional Finnish-sauna data (Laukkanen 2015, 2018) than on direct IR studies (Beever 2009, Ohori 2012, both smaller).
Practical buying notes: Sunlighten Solo cabins, Clearlight Infrared and Health Mate are the established premium brands. Lower-tier studios use generic far-IR cabins; the difference is in panel quality, EMF shielding and claim accuracy. A useful filter: look for centers that publish their cabin specs (wavelengths, EMF rating, panel placement) rather than relying on marketing language.
