Filter Media & Cartridges
Filter options for critical through
prefiltration applications
Filter Media & Cartridges
Filter options for critical through
prefiltration applications
Meissner filters for critical applications are constructed with absolute-rated filtration media. All components are thermally bonded without adhesives or hot-melts. These filter cartridges deliver high flow rates with low pressure drops. They withstand repeated sterilizations and sanitizations while providing extremely low extractables and high dirt-holding capacity. Our graded-density polypropylene microfiber filters are distinguished by their absolute particulate ratings, which are maintained even under the most severe process conditions. Fully automated production gives Meissner filter cartridges the most uniform, consistent construction and performance available anywhere.
Assembly, testing, and packaging of Meissner filters are performed in an ISO Class 7 cleanroom. All Meissner products are constructed with materials that meet FDA requirements for food contact use and are biosafe in compliance with USP Class VI Plastics biological reactivity tests. Pleated membrane filter cartridges are available in PVDF, PES, PP, PTFE. Pleated prefilter cartridges are also available in PP microfiber media and glass microfiber media, as well as PP microfiber depth media.
Frequently Asked Questions
What are filter media cartridges?
Filter media cartridges are cylindrical filtration elements used in housings for critical liquid and gas filtration. They are designed to remove particles, bioburden, or contaminants while maintaining high flow rates, low pressure drop, and reliable retention performance in demanding process applications.
What are Meissner filter media cartridges used for?
Meissner filter media cartridges are used for clarification, prefiltration, bioburden reduction, sterilizing-grade filtration, and vent filtration in biopharmaceutical, pharmaceutical, food and beverage, and other high-purity manufacturing processes.
What types of filter media are available in Meissner cartridges?
Meissner offers both membrane and depth filter cartridges. Membrane options include hydrophilic and hydrophobic media for liquid and gas filtration, while depth and prefilter options are designed for clarification, particle reduction, and protection of downstream final filters.
What is the difference between membrane cartridges and depth filter cartridges?
Membrane cartridges are typically used for precise particle retention, bioburden reduction, or sterilizing-grade filtration. Depth filter cartridges are generally used for clarification and prefiltration because they capture larger particulate loads throughout a thicker media structure and help extend the life of downstream membrane filters.
What is the difference between hydrophilic and hydrophobic filter cartridges?
Hydrophilic filter cartridges wet easily with water and are commonly used for aqueous fluids and biological solutions. Hydrophobic filter cartridges resist water intrusion and are typically used for gas filtration, sterile venting, and applications involving solvents or aggressive chemicals.
How do I choose the right filter cartridge for my process?
The right cartridge depends on your fluid type, compatibility requirements, retention target, process stage, and whether you need clarification, prefiltration, sterilizing-grade filtration, or gas venting. In many processes, depth filters are used upstream for particulate reduction, followed by membrane cartridges for final filtration.
What are the main benefits of Meissner filter media cartridges?
Meissner filter media cartridges are designed to provide high flow rates, low pressure drop, low extractables, strong dirt-holding capacity, and dependable retention performance. Their thermally bonded construction also supports clean processing by eliminating adhesives, resins, and hot melts from the filter structure.
Are Meissner filter cartridges suitable for biopharmaceutical applications?
Yes. Meissner filter cartridges are designed for high-purity applications and are well suited for biopharmaceutical and pharmaceutical processing where cleanliness, consistency, and reliable filtration performance are critical.
Can Meissner filter cartridges be used for process scale-up?
Yes. Meissner filter cartridges are manufactured for consistent performance across sizes, which helps support scale-up from development through production. This allows users to maintain filtration continuity while reducing variability and minimizing requalification concerns.
Why are low extractables important in filter cartridges?
Low extractables help reduce the risk of unwanted substances entering the process stream, which is especially important in high-purity and biopharmaceutical applications. Meissner filter cartridges are designed with thermally bonded construction to help minimize extractables and support cleaner processing.