Buying Guide

Sauna vs Steam Room: What Is the Difference?

A clear comparison of saunas and steam rooms — covering temperature, humidity, health benefits, and which is better for different purposes.

By Wellness One Lifestyle · Published 2026-08-02 · Updated 2026-08-02

Sauna vs Steam Room

Both saunas and steam rooms are heat therapy environments, but they work very differently.

Temperature and Humidity

Sauna: 80–110°C, 10–20% humidity. The heat is dry. Water poured on the stones creates brief bursts of steam (löyly).

Steam room: 40–50°C, 100% humidity. The air is saturated with steam. The lower temperature is necessary because 100% humidity at higher temperatures would be dangerous.

Health Benefits

Saunas: The health research on saunas is extensive and compelling. Cardiovascular benefits, muscle recovery, longevity associations, and immune function improvements are all well-documented. The research is based on traditional Finnish sauna use at 80–100°C.

Steam rooms: Steam rooms are particularly beneficial for respiratory health — the humid air helps clear the airways and is soothing for conditions such as asthma and sinusitis. Skin hydration benefits are also well-documented. However, the cardiovascular evidence base is significantly weaker than for saunas.

Practical Considerations

Maintenance: Steam rooms require significant maintenance — the humid environment promotes mould and bacteria growth. Regular cleaning and disinfection are essential. Saunas are significantly easier to maintain.

Construction: Steam rooms require waterproof construction throughout. Saunas require good ventilation but are not waterproof environments.

Running costs: Steam rooms require continuous steam generation. Saunas are heated on demand and are typically cheaper to run.

The Verdict

For cardiovascular health, muscle recovery, and longevity, the evidence strongly favours saunas. For respiratory health and skin hydration, steam rooms have specific advantages. Many wellness facilities offer both. Wellness One's Connect range can incorporate a shower room that provides a steam experience alongside the sauna.