Humidity Control

Terrawell absorbs and desorbs the humidity in the air to keep moderate environment.

When it is humid

Terrawell absorbs the humidity

When it is dry

Terrawell desorbs the humidity

Humidity Sorption/Desorption Performance Test

(Hyogo Prefectural Institute of Technology, JIS standard)

Testing Method

Set the room humidity to 50%, then up to 75%, and make tiles absorb humidity for 12 hours.
After that, set the room humidity back to 50% and see how tiles desorb humidity.

Highly Effective Deodorization

Terrawell performs eco-friendly deodorization without any use of electricity - by absorbing causative agents of daily odors.
It also absorbs and reduces harmful substances causing dizziness and malaise in the air.

Deodorizing Performance
Evaluation Test

Hyogo Prefectural Institute of Technology

Osaka Research Institute
of Industrial Science and Technology

Characteristics by Formulation of Terrawell

Terrawell tiles basically come in two types, Pro and S.

Name Type Strength Hygroscopicity Color
Terrawell Pro Excellent Excellent Off-white
S Excellent Good White

Custom Formulation

*Pro-X - We can produce customized tiles based on the Pro Type with an original blend of specified raw materials according to your preferences.
e.g. - Mixing in soil or stones (minerals) which are local specialties.
  - Mixing in recycled materials.
Note: Some materials may not be available for use. Please consult with us first.
The inclusion of certain materials may lead to changes in characteristics of tiles.

Example of Pro-X

Includes Tatsuyama Stone, a local specialty of Hyogo Prefecture, Japan. Installed at House of Hyogo Origins in Hyogo Prefectural Hyogo-no-Tsu Museum.


Feel free to contact us
for any questions regarding orders or products.