(1) Adequate and suitable washing facilities, conveniently accessible for the use of all persons employed, shall be provided and maintained in a clean and orderly condition in every factory, office and shop.

(2) Where the Chief Inspector is satisfied that, by reason of the difficulty of obtaining an adequate supply of water or any other special circumstances, the application of this section to any premises would be unreasonable, he may by certificate in writing exempt those premises from the requirements of this section.