Despite high drinking water requirements, water-loving microorganisms can settle in the piping system and form a biofilm. Reasons are often poorly insulated water pipes, lowering the hot water temperature or even insufficient water flow. Due to biofilm formation, microbial contamination of tap water with pathogens such as Pseudomonas aeruginosa cannot be ruled out.

According to the recommendations of the Commission for Hospital Hygiene and Infection Prevention at the Robert Koch Institute on “Infection prevention in homes” (RKI/2005; 6.4.1.Wound dressings) and on “Requirements for hygiene in the medical care of immunocompromised patients” (RKI/2010), any wound irrigation fluid must be sterile or 0.2 µm filtered water must be used.

This sterile-filtered water can be reliably provided from tap water by using terminal sterile filters such as this wound shower.