Measurement of Radiation and Formaldehyde Contamination Levels

Inspection of Kumiko screens for Formaldehyde Contamination

100% formaldehyde-free

Our products and materials are 100% formaldehyde-free, so are completely safe to use in homes.

Natural wood material is supposed to be free from formaldehyde, but this is not actually correct.

Please refer to the link below:
Knowledge of wood materials

We use a waterproof non-formalin type of adhesive, while inspects Formaldehyde contamination on our products.

The permissible threshold of formaldehyde emission for furniture is less than 5mg per liter. All our products comply with the regulations.

As our products are made from natural wood materials, they are recommended for indoor use. They are not recommended for outdoor use due to to concern about their durability.


Wood kumiko tanihata
kumiko Formaldehyde

What is Formaldehyde or Formalin?

People may feel ill after purchasing a new home or renovating their home, because of the unknown presence of chemical substances in the building materials.

By polluting the air, chemical agents, including formaldehyde or formalin, can be harmful to health, causing irritation of the eyes and skin inflammation.

Chemical agents which can be in glue, furniture, doors, wallpaper, flooring materials and cloth, may even be cancer-causing.

Formaldehyde Testing Certification

Formaldehyde Testing kumiko
Formaldehyde Testing kumiko
radiation certification kumiko

radiation certification kumiko

Radiation is not found in our products made from cypress and cedar. The simple radiation inspection in the picture on the left is conducted first as a safety measure, before experienced examiners perform a more detailed examination. 

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