Larger medical devices and systems will often include filtration built-in to the assembly. An example of this is filter cartridges installed in housings in Automated Endoscope Reprocessors (AER), air vents included in autoclaves, capsules included in washer disinfectors.
The majority of these applications are to produce bacteria free water so the typical cartridge cascade would be as shown below.
Stages of Filtration & Water Treatment
Particle Removal
Prevents debris, scale flakes, dirt and particle build up in pipework, tanks, equipment and where present, premature blinding of filtration stages further along the cascade.

SPECTRUM Premier Pleat Polypropylene
Typically used
PPP-5Pentair 20″ Plastic Housings
Typically used
No203GBio-Burden Removal
To help clarification and to protect the final sterile filtration stage, absolute pleated cartridges are used to remove the bulk of the spoilage contaminants.

SPECTRUM Premier Pleat Glass Fibre
Typically used
PPG-1Pentair 20″ Plastic Housings
Typically used
No203GBacteria Removal
Reducing the levels of bacteria to log 7

SPECTRUM Premier Pleat Polyethersulfone
Typically used
PPPES-0.2Pentair 20″ Plastic Housings
Typically used
No203GFeatured Products

SPECTRUM Premier Pleat Polypropylene
The most popular and versatile cartridge in the Premier Pleat range. Many applications benefit from using this high efficiency, 4 layer cartridge. WRAS approved.

SPECTRUM Premier Pleat Glass Fibre
Cryptosporidium and Giardia cysts as well as other parasites and micro-organisms are removed effectively using this pleated glass fibre cartridge.

SPECTRUM Premier Pleat Polyethersulfone
Bacteria retention rates in excess of log 7 establish the SPECTRUM PPPES range of cartridges as the right choice for final guard filtration in a host of pure water applications.