Containment when charging potent compounds to reactors, mills and IBC's is a common issue; Telstar ACE have extensive experience in providing many such solutions in the low nanogram/m³ containment range. Working alongside end users and consultants Telstar ACE have developed a simple cost effective ergonomically designed negative pressure unit, for charging from ported bags, along with the more familiar designs which incorporate multi-chamber units and drum tipping devices.