On June 5, World Environment Day, Harbin Pharmaceutical Group's illegal emission event had a great impact on Harbin Pharmaceutical, because the production workshop fermentation and drying process will produce exhaust gas directly emitted at high altitude, resulting in excessive gas emissions. Harbin Medical Group, which produces flammable and harmful gases such as hydrogen sulfide, ammonia and methanol, provided the ASD5310, ASD5300C detector and ASD5100 alarm controller for the project.