The first is the feeling method. Since formaldehyde and ammonia are irritating to the sense of smell, it can be judged to a certain extent by smelling with the nose. For example, if the formaldehyde exceeds the standard 1 time, there will be a slight odor. If it exceeds the standard 5 times, there will be obvious odor. After 10 minutes or more, the nose will be uncomfortable and the eyes will be itchy. If it exceeds 20 times, it will cause tears, pungent nose and coughing; Above, dyspnea and respiratory damage. Followed by animal and plant law, placed in the indoor large-leaf green plants curled in one week, yellow leaves, and gradually withered, the indoor formaldehyde exceeded the standard 2 times. Finally, raising small goldfish in shallow basins, such as the death of a week, the indoor formaldehyde concentration at least 3-5 times. Having mastered these convenient and feasible methods, everyone can regularly check their own air conditions. Decoration experience entrance decoration restaurant decoration formaldehyde interior decoration Bathroom Floor Drain,Bathroom Long Stainless Steel Floor Drain,Stainless Steel Black Floor Drain,Stainless Steel Bathroom Floor Drain Kaiping City Jinqiang Hardware Products Co.,Ltd , https://www.jqfloordrain.com