The lift-upcover for PURA Water Baths reduces the evaporation of temperature control liquid and saves energy. The rising steam is fed back into the bath. As a result, the temperature control liquid remains in the bath and refill cycles are extended. An additional benefit is that the cover prevents contamination of the samples in the bath. The lift-up cover for PURA 4 made of polycarbonatecan be used up to 99.9°C