Salary of Commissioner.

If the Commissioner is of opinion that the cleansing or disinfecting of a building or of a part of a building or of any article therein likely to retain infection, would tend to prevent or check the spread of any dangerous disease, he may cause such building or part thereof article therein to be cleansed or disinfected at the charge of the Municipal Fund and may cause such building to be vacated for such period as he deems necessary for such purpose: Provided that if in the opinion of the Commissioner, the owner or occupier is able effectually to carry out such cleansing or disinfection, the Commissioner may cause the said building or part of the building or article likely to retain infection to be cleansed or disinfected by and at the charge of the owner or occupier thereof.