BSL3 Effluent Decontamination Systems Astell manufacture a wide range of aqueous liquid Effluent Decontamination Systems (EDS) to service any BSL3 facility. EDS are particularly suited for high containment facilities or high risk laboratories. As no two projects are likely to be the same, Astell Scientific offer comprehensive project management to guide you through the consultancy stage. Effluent types vary for each project, but typically treatable effluent sources will include: Tap water from sinks and wash basins Water from washroom facilities within a containment area Sanitary installations such as toilets Water from showers and other cleaning facilities in the containment area Any exhaust/water from sterilizers used within the Category 3 or 4 area