Safety waste caps consistently trap vapors and liquids in safety cans and containers when storing or disposing hazardous material. The closures keep solvents clean while protecting handlers with leak-proof tight seals. Chemically resistant for even the most corrosive materials, the high-quality cap construction complies with safety codes and regulations for the work place. The strong carbon filters give maximum vapor protection and closures featuring automatic shut-off or funnels make overflow filling or dumping spills impossible.

AUWII Safety caps efficiently filter dust in the air to prevent contamination of the solvent which used by Chramatographic and Solid Phase Extractor instrument and ensure the accuracy of the analysis results. When the  instrument stops working, the mobile phase is prevented from volatilizing through the air inlet to protect the laboratory environment from pollution.