The Polezhaev (Kiselev) absorber was made by Primelab in its own glass blowing shop. It is possible to manufacture laboratory glassware and instruments according to individual sizes and shapes of the customer in the shortest possible time. The Polezhaev (Kiselev) absorber is suitable for purifying gases and collecting impurities for analysis. It has a standard shape with an elongated cylinder and two tubes. It has a certain similarity with the Zaitsev absorber, but the long tube in the Polezhaev absorber can be removed, which simplifies the process of cleaning the body and working with the device as a whole. The absorber, like all laboratory glassware and accessories of the PrimeLab company, is made of durable high-grade glass.