Greenball cigarette filter use triple filtering system and compound interaction technology. Our patented organic formula together with selective absorption capabilities . Approved by the US Invention Patents.
R & D Process：
3Dsd has developed the unique bio- technological formula in the world.
From 1970 to 1980.Complete the formula and manufacturer design.
From 1981 to 1988,
the sample test is finalized.
From 1989 to 1990, the filter application is tested in US
and China Bio-Lab Center.
Greenball cigarette filters are tested by US BioLab, China Tobacco Quality and Quantity Test Center with spectrographic analysis, quality analysis, ingredient analysis.
Greenball filters are patented in the US, Taiwan and China.
