The biological composite enzyme decomposition technology adopted can completely decompose pet odors (mainly including NH3, H2S, C3H9N, CH3CHO and other molecules) into non-toxic, odorless, and non irritating small molecules under room temperature conditions. It can replace the existing irritating products such as chlorine, phenolic, aldehyde, and self consuming biological enzymes in the market, and is a disruptive technology. The biological composite enzyme decomposition technology solves the biggest pain caused by a foul odor in the moment when pets shovel excrement. Generating oxygen molecules can come into contact with organic volatile gas molecules in the air, open molecular chemical bonds, and decompose into oxygene and water.