<p>A mesh nozzle (13) for a sprayer, comprising a plurality of through holes (80) of an optimum shape to increase a medical treatment efficiency by increasing the atomized amount of a chemical liquid by the sprayer. The mesh nozzle is used for atomizing the chemical liquid. The through holes (80) of the mesh nozzle (13) for the sprayer is formed in a tapered shape convergent toward its outlet face (13A) side, and a cone angle (?<SUB>1</SUB>) on the outlet face (13A) side is 40° or higher.</p>
