3M introduces sterilising grade air and gas filters for food processing

Innovative membrane technology combines reliable retention with high airflow for efficiency and longevity

LifeASSURE PFC sterilising-grade air and gas filters

New LifeAssure PFC sterilising grade air and gas filters from 3M feature an advanced ethylene chlorotrifluoroethylene (ECTFE) membrane, which combines reliable micro-organism retention with high airflow performance, efficiency and durability. The company says the filters help reduce operating costs while ensuring strict compliance with food and beverage industry standards.

The single-layer ECTFE membrane is validated by liquid bacteria challenge, and has demonstrated complete aerosol retention of the bacteriophage ɸX-174. The hydrophobic nature of ECTFE ensures continuously high airflow and low pressure drop throughout a long service life by preventing blockage due to moisture. In addition, specially designed polypropylene flow-enhancing layers help maximise efficiency. The membrane is contained in a Single Open-End (SOE) filter cartridge capable of withstanding multiple exposures to autoclave or steam cycles.

The LifeAssure PFC series is suited to sterile filtration or use in small and economical vent filter assemblies. Typical filtration applications include filtering process air as well as use in large-scale fermentation air inlet and exhaust systems, or blow, fill and seal machines. Venting applications include venting tanks, lyophilisers and autoclaves.

The filters meet quality and safety specifications such as 21 CFR Materials of Construction, USP Biological Safety Test, Validation Guide and Drug Master File Listing. All filter materials are fully traceable according to 3M ISO 9001:2008 Quality System.

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