These GMP Cell Expansion Bags provide a closed-system solution for sterile contamination-free cell culture and expansion in biopharmaceutical applications Designed for optimal oxygen and CO exchange these bags support cell viability and expansion while minimizing water loss The integrated polycarbonate/silicone (PC/SL) needle valve and high-density polyethylene (HDPE) cap allow for secure aseptic fluid handling in sensitive cell cultures Closed-System Design Reduces contamination risks compared to traditional culture vessels Needle Valve (PC/SL) Integrated polycarbonate/silicone valve for precise aseptic sampling HDPE Cap Ensures a secure and contamination-resistant seal Non-Pyrogenic and Non-Cytotoxic Safe for sensitive cell cultures with no endotoxin contamination DNase/RNase-Free and Human DNA-Free Prevents nucleic acid contamination ensuring reliable results Minimal Water Loss Low water permeability prevents evaporation and maintains culture stability Scalable and S