Meissner mikroszálas védőüveg

Meissner develops, manufactures, supplies and services advanced microfiltration products and single-use systems worldwide. Meissner stands as a leader in microfiltration by providing high performance products and technical support services for critical applications.



Meissner Protec® Glass Microfiber

This advanced borosilicate glass fiber prefilter removes particulates and reduces bioburden in biological liquids to protect downstream membrane filters and equipment.

The Protec® RF microfiber glass filter is available in ratings of 0.5 µm or 1 µm. The Protec® RM is available in a choice of 0.2 µm, 0.3 µm and 0.5 µm, and combines an outer layer of microfiber glass filter media with an inner layer of Meissner’s proprietary hydrophilic PVDF membrane. Protec® filters provide consistent submicron contaminant removal with high dirt-holding capacity and high flow rates. The filter effectively protects downstream membrane filters and equipment. Protec® filters are also available in discs, capsules, high-capacity UltraCap® and UltraCap® H.D. capsules.

Design Features

  • Protec® RM filters combine the retention performance of a PVDF membrane and the high adsorption and contaminant-holding capacity of a borosilicate glass fiber media
  • All-polypropylene support materials
  • High flow rates and excellent filtration economics
  • Withstands repeated SIP, autoclave, CIP and hot water rinse cycles, and demanding process conditions
  • Manufactured for use in conformance with cGMP


  • Biological products
  • Biopharmaceuticals
  • Vaccines
  • Serum, plasma fractions and other blood products
  • Tissue and cell culture media
  • Protein solutions
  • Fermentation media and feeds
  • Cell removal from fermentation broth
  • Pre-column chromatography
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