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Raw material: Process volcanic ash found in Kagoshima, Japan (Shirasu)
 
 
Additive: Grafton (VOC elimination, deodorization), developed and sold by Mitsui Corporation
Product: Shirasu + Grafton mixing
 
 
- Formed several hundred thousand   years ago
- Multi-form structure
- Low optimum firming temperature
- Large temperature range in which   forms are generated
- Thin external surface 		 - Formed several tens of thousands of   years ago
- single form structure       
- high optimum firming temperature
- Thick external surface 
 
 

VOC Absorption and decomposition
VOC Absorption and decomposition such as formaldehyde, benzene, and toluene
Remove odor
Absorb and decompose ammonia, aceton aldehyde, bed odor, etc.
Control humidity
Breathing wall ensures most pleasant humidity
adiabaticity / sound absorption/ sound proof
Strong effect through hollow vesicular structure
Beautiful appearance and light weight
environmentally-friendly texture and easy appliance with light weight

 
  Comparative experiment of remaining concentration of formaldehydeFormaldehyde concentration
- Experiment method: Measure remaining concentration of formaldehyde in a closed space
- Experiment result: 100% elimination within 80hrs
 
 Comparative experiment of formaldehyde absorption capacity
- Experiment method: Active carbon absorption curve measurement test method (formaldehyde)
- Experiment result: 74-times higher absorption capacity than active carbon
 
 formaldehyde re-elution test
Once absorbed, formaldehyde is decomposed and not re-eluted
 
  Comparative table of far-infrared emission
- volcanic ash emits the highest level of far-infrared and anion in nature.
  Far-infrared and anion promote blood circulation to activate cells and has anti-bacterial and anti-odor quality
 
  Anion emission Graph
 - Average value of anion: 0 unit/cc: -297133/cc
 - Maximum value of anion: 0 unit/cc: -1438488/cc
 
Overview
- Experiment site: A mansion for single household in Japan
- Experiment method: Comparative experiment of Rm 205 (applied Shirasu + Grafton) and Rm 305 (applied none)
- Experimenting institute: Research lab, Yokohama National University
- Measuring items: formaldehyde, Acetonealdehyde, acetone, temperature, humidity, etc. Measurement point
 
 
 Measurement result (VOC)
 - Rm205 Shirasu + Grafton applied / Rm 305 applied none
 
 - Rm205 Shirasu + Grafton applied / Rm 305 applied none
 
 
 
- VOC elimination: Solve the problem of New house Syndrome
- Odorous matter elimination: remove odor from food, bathroom, bed smell -> recognized by residents
- Insulation effect: no need for additional insulation materials
- Moisturizing effect: Natural humidity control -> recognized by residents
- Sound absorption/proof effect: Imperative for apartment houses, OfficeTels
- Natural texture: no need for additional decorating materials -> Able to select patterns suited to individual tastes
 
 
- Inter-level sound absorption material: block heavy and light noises
- VOC elimination: eliminate various odorous matters and toxic substances
- Odorous matter elimination: remove distinctive smell of accommodation facilities / restaurants
- Insulation effect: no need for additional insulation materials
- Moisturizing effect: Natural humidity control -> create pleasant atmosphere
- Sound absorption/proof effects: Imperative for accommodation/ restaurant business
- Natural texture: increase customer satisfaction (Nature friendly atmosphere )
 
 
- VOC elimination: remove various toxic substances in labs and others
- Odorous matter elimination: remove distinctive smells in public building -> create pleasant atmosphere
- Insulation effect: no need for additional insulation materials
- Moisturizing effect: Natural humidity control -> create pleasant atmosphere - Sound absorption/proof effect: Imperative for public buildings
- Anti-bacterial effect: Imperative for hospital and other public buildings for their unique characteristics