Ophthalmic Solutions

Recommended Filter

Filter Characteristics

Double-layer Polysep II Filters
(Grade W6, 1 µm + 0.5 µm)
Cartridge Filters
Opticap Capsule Filters
Optiscale Capsule Filters

Borosilicate glass top layer enhances particle and loading capacity in high solute applications
Mixed esters of cellulose membrane bottom layer ensures high retention and filtrate quality
Robust construction validated to withstand multiple SIP or hot water sanitization cycles
Non-fiber releasing structure preserves product purity
100% integrity tested to ensure quality
Available in a variety of pore sizes to accommodate the needs of each user. Grade W6 is commonly used in this application. Choice should be made based on small-scale testing.

Recommended Filter	Filter Characteristics
Charged Durapore 0.22 µm Filters Cartridge Filters Optiseal Cartridges	Sterilizing-grade PVDF membrane Ideal solution when preservative binding is a concern High flow rates and throughput, low extractables and protein binding 100% Integrity testing to ensure performance
Millipore Express SHF 0.2 µm Filters Cartridge Filters Opticap Capsule Filters Optiscale Capsules	Sterilizing-grade PES membrane providing broad chemical compatibility across a wide pH range (1–14) Asymmetric pore structure delivers extremely high flow rates at low preservative binding 100% integrity tested to ensure quality

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