Salt climate technologies compared
“Salt room” covers many different methods today. The differences are not in the decor but in the air: how much salt is floating in it, how fine the particles are, and for how long.
What makes a good salt climate?
Particle size
Only particles below 5 microns can reach the small airways.
Dryness
A wet, humid aerosol sticks to the walls of the upper airways.
Concentration
How much salt there is per cubic metre of air, and how long it stays there.
Stability and cleanliness
How long the climate stays constant, and how clean the air is.
The best-known methods
| Method | Characteristics |
|---|---|
| Evaporating or nebulising brine | The inhaled aerosol has a humidity above 95%, so much of it sticks in the upper airways. Water tanks need extra attention to hygiene. |
| Ultrasonic nebulising | A fine aerosol, but the climate is not stable and usually only one person can use it at a time. |
| Salt-brick and salt-wall rooms | Practically no salt gets into the air from salt walls. Without a climate device they are mainly pleasant, relaxing (wellness) spaces. |
| Loose salt, repeated climate generation | Particles larger than 5 microns are constantly present in the air, and with frequent regeneration these are inhaled too. |
| Salt mine | A genuine salt aerosol, but with relatively high humidity and low concentration (about 2–2.5 mg/m³), so long stays of several hours a day are needed. Tied to one place. |
| Dry salt aerosol (AREC) | Heated, completely dry salt is ground at high speed. Our measured data: particles of 0.5–3 microns (90% below 5 microns), about 8 mg/m³ concentration, humidity below 60%, and a climate that stays stable for about 3 hours after a single generation. About 15 minutes of settling before each session. |
Want to know more?
We explain in more detail how a salt generator works, and what research says about salt therapy.
How does a salt generator work?Salt room, cave or generator?The AREC figures are based on our climate measurements and may vary depending on the room and conditions of use. The number of scientific studies on the effectiveness of salt therapy is still limited; a salt climate is a complementary wellness option and does not replace medical treatment.