Porvair Filtration Group, which has supplied the aerospace, nuclear, energy, process and bioscience industries with performance driven filtration equipment, has launched an exceptionally robust range of PTFE membrane filters for sterile air filtration applications.

Porvair’s PTFE membrane filters are designed to resist repeated steam cycles at high temperatures. The incredibly durable Fluorofil Plus filter cartridges have been tested to withstand 250 steam sterilisation cycles for 1 hour at temperatures of 142°C. The cartridges can also withstand steaming in the reverse flow direction at 142°C, making for a highly effective, dependable, all-round performance.

Porvair’s Fluorofil Plus filters also offer a number of advantages over standard filters. Benefits include a lower pressure drop and more robust performance in fermentation processes, while the filters can also be steam sterilised, tested, and used multiple times. The Fluorofil filters can also handle more steam sterilisation cycles than other models, outperforming competitor products.

The filtration specialist is leading innovations in this area, and its Fluorofil filters are validated to retain bacteria in both liquids and gases, in accordance with the most stringent pharmaceutical industry standards and recommendations.

 “Our Fluorofil filters are capable of delivering flow at a minimal pressure drop, and together with unrivalled durability, this has resulted in our customers benefitting from lower energy costs and a reduction in downtime. Repeated steam sterilisation cycles are known to degrade polymeric filters, but the fact that Fluorofil Plus filter cartridges can withstand steaming in reverse and forward flow directions at high temperatures means that they are helping to define a new standard,” said Mozamal Nazir, Porvair’s senior scientist. (NA)