▎ 摘　　要

NOVELTY - The utility model belongs to the technical field of laboratory safety, and claims an effective absorption acidity, mask of alkaline gas, comprising a barrier layer, the right side of the barrier layer is provided with a framework layer, the right side of the framework layer is provided with a filter layer, the right side of the filter layer is provided with an acid alkaline absorbing layer, the right side of the acid alkaline absorbing layer is provided with an inner lining layer. The utility model is provided with a framework layer, the filtering layer and the acid alkaline absorbing layer are matched to realize the advantages of effectively absorbing acidic alkaline gas, the graphene porous material in the acid alkaline absorbing layer is soaked by the acid absorbent or alkaline absorbent, freezing and drying the fixed shape by the vacuum freeze drier; at last, the structure is stable by calcining, It becomes a part of acidic alkaline gas which can be placed in the mask and can be volatilized when absorbing experiment, the mask structure is simple, so it can effectively absorb the acidic gas.