Upon detection analysis : the main room of pollution to toxic substances that can be inhaled through breathing, bacteria, formaldehyde, ammonia, the average amount of pollutants 4-8 times.

• 经检测分析：居室内污染的有毒物质主要为可吸入颗粒物、细菌、甲醛、氨等，这些污染物平均超标4至8倍。