*The culture device with monolayer or up to 10 layers can realize large-scale cell culture by one time *Available in surface treated or non-treated *The device is assembled by hydrophobic membranes with a aperture of 0.22 µm to avoid potential contamination in gas exchange *The device does not absorb cytokines and growth factors, and conventional trypsin digestion method is applied in cell harvesting *Strict integrity teste *Sterilized by gamma irradiation *Non-pyrogenic & DNase/RNase-free