Our Certificates

Zen Company strives to produce high quality and effective products which are 100 % nature based and environmental friendly.



Certificate of contens

Certificate of 100% natural and chemical-free products (Vinacontrol Laboratory, Vietnam):

Click here: Certificate of contens



Certificate of adsorbance

Certificate of organic absorbance: 100 gram of our activated charcoal can adsorb 4-5 gram butane (Carbon Activated – Europe laboratory):

Click here: Certificate of adsorbance

The test results indicate an absorbance capacity, which is considerably higher than the indoor particle concentration in Denmark, also including episodes of high emissions, such as during cooking.*

Facts on micro-particles and the effect of our Activated Charcoal

  1. PM1 = micro-particles with diameter smaller than 1 micrometer. Such small particles can enter respiratory pathways and are related to lung cancer, cardiovascular and respiratory diseases.
  2. Volatile organic compounds contribute to a considerable concentration of PM1 in the atmosphere.
  3. A study indicated a concentration of 11 μg PM1 pr. m3 in a non-residential household in Copenhagen, Denmark (Environmental Protection Agency, Denmark, http://www2.mst.dk/)
  4. * Personal communication with Dr. Quynh Nguyen from the Air Quality group, Department of Engineering, Aarhus University, Denmark.