1. Absorb indoor harmful gas, such as formaldehyde(CH2O), benzene(C6H6), toluene(C6H5CH3), xylenee(C8H10), ammonia(NH3), chlorine(C12), sulfureted hydrogen(H2S), methane(CH4), sulfur dioxide(SO2), carbon monoxide(CO), smog and odors
2. The using life-span is long, it can be used for ten years if you use in correct method.
3. It belongs to physics adsorption, needn't energy sources, will not produce secondary pollution.
3. Besides the strong adsorption function, at the same time it possess profound culture and florid appearance.
4. It's the best gift for friends and the commercial activity.

Activated carbon carving crafts using method
1. Dilacerate poly bags before using the charcoal carving.
2. Set the charcoal carving at a proper high and safe place inside the room.
3. Avoid to use charcoal crafts in high density, big granule polluted circumstance such as building site, industrial factory etc.
4. Clean the surface of charcoal crafts by dry towel, but not by water or other liquid detergent.
5. The normal service life of our product is 8-10 years, after which period expose the charcoal crafts in the sun burning sun for 3-5 hours every 3 years.
6. Using 20cm diameter product for every 18 square meters area in the room.
7. When you want clarify the indoor air in short time, you should ventilate the air.