The antifogging coating is an independently developed functional coating by BIOSURF, which can be applied to samples of various materials and different curvatures. The modification of the anti-fog coating can eliminate the fogging process on the sample surface without affecting the light transmittance of the sample, thereby providing a good field of vision. At the same time, the anti-fog coating has good firmness and wear resistance, and can withstand flushing with water and alcohol solvents as well as wiping with non-woven fabrics.