Section 10. If in a factory, in which any process is carried on by which dust or other impurity is generated and

10. If in a factory, in which any process is carried on by which dust or other impurity is generated and inhaled by the workers to an injurious extent, it appears to the inspector that such inhalation could be to a great extent prevented by the use of a fan or other mechanical means, the inspector may serve on the manager of the factory an order in writing, directing that a fan or other mechanical means of a proper construction for preventing such inhalation be provided, maintained and used before a specified date.