The 143 Vinyl Acetate detection tube is capable of quickly measuring the composition of toxic and harmful substances within 5 minutes in the event of a fire or chemical leak in an industrial site, with concentrations ranging from 5 to 10 ppm, 10 to 100 ppm, and 100 to 250 ppm. The imported emergency drug detection box is designed for rapid detection of toxic and harmful gases and vapors in the air, and can detect the presence of toxic and harmful gases at the accident site in * * time. China CDC Special Toxic and Harmful Gas Emergency Detection Box