Question 1

What is So Sponge?

Accepted Answer

So Sponge is a French cleantech company founded in 2023 in Villeurbanne (Lyon). It designs and manufactures humidity control solutions based on a patented mesoporous material developed from public research at Université Claude Bernard Lyon 1 (UCBL) and IFPEN. The material captures water vapor through capillary condensation without any energy or maintenance.

Question 2

What product ranges does So Sponge offer?

Accepted Answer

So Sponge offers two ranges: AirSponge, a passive zero-energy line for housing, storage and industry (the material works autonomously, no electricity, no maintenance), and AirSwing, an active dehumidification line using forced adsorption/desorption cycles delivering superior energy performance compared to conventional compressor-based systems, without F-gas refrigerants.

Question 3

How does So Sponge technology work?

Accepted Answer

The mesoporous material captures water vapor through capillary condensation when relative humidity exceeds approximately 60%, then releases it naturally as the air dries. This adsorption/desorption cycle repeats indefinitely, without heating or external treatment. The material regenerates spontaneously at ambient temperature.

Question 4

Where is So Sponge manufactured?

Accepted Answer

So Sponge is designed and manufactured in France, within the Lyon / Rhône-Alpes innovation ecosystem. The company is incubated by Pulsalys, the technology transfer office of the University of Lyon, and contributes to UN Sustainable Development Goals 7, 11, 12 and 13.

The material that controls humidity

One material, two modes of action

Material shaping

Process engineering

What So Sponge solutions to regulate humidity?

AirSponge

AirSwing

Have a project? Need humidity control?

Why choose our humidity control solutions?

Contributing to UN climate goals

Leveraging public research

Supporting the national ecosystem

Helping you achieve sustainability