
HPAPI / OEB-5 processes
Safe handling of highly potent active ingredients (HPAPI)
Maximum personnel safety and product integrity with our certified OEB 5 containment solutions.
HPAPI
OEB 5/6
Pharmaceuticals
Containment
Overview
What are HPAPIs and why are they particularly demanding?
Handling highly potent active substances requires uncompromising safety. Highly active pharmaceutical ingredients with extremely low OEL values (OEB 5 and above) require special containment measures. Our HPAPI containment portfolio, in particular our DÜPOLEX® endless liners, offers certified protection for OEB levels 4 and 5. These systems prevent cross-contamination and reliably protect employees from exposure to toxic substances. Through GMP-compliant cleanroom manufacturing and validated processes, we ensure that your OEB 5 containment strategy meets the highest regulatory requirements while also enabling efficient production workflows. Rhein-Plast offers modular solutions for this need.
The challenges in HPAPI processes
Extremely low exposure limits (µg/m³ range)
OEL values in the microgram range require containment systems that reliably contain even the smallest particle quantities.
Complex regulatory requirements
HPAPI processes are subject to the strictest requirements, from GMP and OEB classifications to environmental protection regulations.
Risk to personnel and the environment during open handling
Without closed systems, even the smallest amounts of active ingredient can cause serious health damage to employees.
OUR SOLUTIONS
The Rhein-Plast portfolio for HPAPI processes
Continuous Liner / endless containment, transfer and connection bags, primary pharmaceutical packaging with GMP material, customised film solutions. All products are manufactured from high-quality, GMP-compliant polyethylene films in our German cleanrooms and enable enclosed, dust-free transfer.
advantages
OEB 5/6 Compliance
Dust-free
Closed processes without particle release to protect personnel and product.
OEB 5/6 Compliance
Demonstrable compliance with the highest containment levels, verifiable and documented.
GMP-compliant materials
Pharmaceutically qualified PE films from our own in-house extrusion.
No extensive conversion
Integration into isolators and cleanroom processes of ISO classes 5, 7 and 8 for maximum product purity and the highest process reliability.
DÜPOLEX®
The premium film for your HPAPI containment
Our proprietary film technology offers superior mechanical strength and anti-static properties.
For the safe handling of highly potent active substances, film quality is crucial. Our DÜPOLEX® films set the standard here.
Permanent anti-static
Prevents powders from sticking and reduces the risk of explosion.
High tear and puncture resistance
Minimises the risk of leaks and ensures maximum process safety.
Certified purity
Manufactured under ISO and GMP conditions to eliminate product contamination.
Validated barrier and sealing properties
Integration into existing systems without costly modifications.
Areas of application
Typical areas of application for OEB 5 containment
From API manufacturing to filling: secure processes across the entire value chain.
Sampling
Contamination-free sampling from reactors or mixers.
Dispensing & Weighing
Dust-free decanting and refilling of powders and granules.
Tablet pressing & encapsulation
Safe loading and unloading at production facilities.
Filling & Packaging
Closed transfer of APIs in primary or secondary packaging. Our continuous liners for OEB 5 are a flexible and efficient solution.
Products
Recommended products for HPAPI processes
Ready for safe HPAPI containment?
Contact our experts for personalised advice on your OEB 5 application.







