Each deionization water purification system from Siemens includes a positively charged 0.2 micron bacterial/biological sterile filter which allows the system to produce ultrapure water with endotoxin levels of less than 0.001 EU/ml.
 

For applications that require low total organic carbon (TOC) levels, both the LaboStar system and LaboStar TWF system are available with ultraviolet (UV) sterilization and an enhanced-organic-removal deionization (DI) ‘polishing’ cartridge.
 

The LaboStar system incorporates two DI cartridges and optional UV which polish the feed water from reverse osmosis (RO) or DI pretreatment, or a combination of RO plus DI or RO plus continuous electrodeionization (CEDI) pretreatment.
 

The LaboStar TWF system is available with pre-purification product flow rates of three litres per hour, or seven litres per hour for applications with large daily use requirements. The system features a pretreatment module which produces RO quality water from a tap water feed source, and an integral 7-litre tank for storing RO-quality water from the pretreatment cartridge. Water is sent from the tank to a DI cartridge for further purification when Type I water is required at the point of use. When not in use, all LaboStar systems circulate the water through the UV and DI cartridge pack to maintain high water quality.