WHAT IS THE SWIPURE LGB FILTER?It is a device that sterilises the water in your dental unit and protects it from impurities in the pipes. Operators and patients are often exposed to the risk of cross-infection. The mains water supplying the dental unit water circuit contains micro-organisms that, over time, attach to the walls of the ducts and produce a biofilm. The water supply is thus contaminated by a high density of micro-organisms, chiefly gram-negative bacteria such as Pseudomonas aeruginosa (especially legionella) and other pathogens such as Staphylococcus aureus.