(1) [n every room in a factcry.in which wort e., uiJoraiorilf y employed and wnicU is noi ventilated-!Y mechanical means, ir.,.i. iir"} u. srifficient'openings in the walls or roof for the admission or ;g;;;, ;i;ir ro maintain the atmosphere in the room in a fresh and reascnably cool condition.
O\ '!^fin anv part of a factory the Inspector, having dlt regard to the weatnL?.C"aiti"i,r'lh., prevailing, considers-the atmosphere to 'oe Yn{ql, vitiated or stagnani uoJlnit this istue to insufficieot openings, he shall by written order require the manager to-
(a) increase the op_e_nings in the walls or in the roof to an aggtegate ,r.r-.[urt tois pei ce.,t of the area found by the applicable for- -ri. i,iiappendii I or to such less extent as he deems reasonable in the circumstances, or ft) orovide mechanical means to produce a continuous change of air\-" it tt r rate cf three complete changes in the hour or at such rate as he deems sufficient in the circumstances' 1 9. Measures required for cooting.-lf i_n any room of a factorythecooling proferties of the air a.ppear to the-Chief Inspector to be at times insufficieit totecu." workers againit injury to health or serious discomfort- !1. q.y LV *riit.r- ora.r requirJthe manager to carry out any or all of the following deasures before a sPecified date :-
(a) Electric or other fans to be used to produce adequate movement\-,, of -air over the workers. The Chief Inspector may require such movement to be such that the rate of cooling by evaporation at a height of five feet from the floor level, as found by the use of a tata inlrmometer, is two and a half times what it would be if the air were not moved bY such fans ;
(b) The height-of the lo-om from floor to roof or ceiling to be increased to a"height of i 6 feet or such less height as the Chief Inspector deems reasonable in the circumstances :
provided that where any process generating heat is carried on in a building, tt. Cf,l.f inspector na;,6y aoorier in writing, require the height of theloof to be raised to eighteen feet.
- (c) A layer of tiles-,_wood or other substance which is bad conductor , of hJar to be added to the roof or substituted for other materials or a ceiling or a double roof to be provided ;
(d) Sun shades of-specified size 19-be placed before or fitted to such openingsasadmitdirectsunlightupontheworkers.