Non-Sterile Millex® HPF Syringe Filters
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Overview
- Two to four times greater throughput than syringe filters without prefilters
- For manual or automated use
- Low-extractable polyethylene housing
Greater Throughput for Easier Filtration
The HPF Millex includes two different media: a graduated glass fiber prefilter (10.0 to 0.7 µm) to remove larger particles and a 0.20 or 0.45 µm membrane filter for fine filtration. This combination of media provides significantly greater throughput than standard filters without prefiltration media, especially when filtering particle-laden solutions.
Available in Standard and Automation Compatible Packs
HPF Millex filters are available in boxes for individual sample filtration and in tubes for use on automated systems, including Zymark BenchMate™, Prelude™, MultiDose® Plus, and TPW™II workstations.
The filters feature a pressure-resistant, domed housing and an optimized
Luer-Lok® connection to ensure reliable delivery by automated systems.
Some PTFE membrane containing products may be limited to specific applications. Those products will contain an inset specifying the limits of use.

Multivitamin tablets were dissolved overnight at pH 3 and aliquots of the solution were processed with each syringe filter at 350 mbar (5 psi).
Applications
Drug Dissolution Testing, Automated Sample Preparation, Clarification of Solutions Containing High Particle Levels