CHAPTER VI 



VENTILATION OF THE BUILDING YOU ARE IN 



Your teacher will take you to the basement to-day, if 

 she can, and you will see the furnaces, the hot-air pipes, 

 and the fresh-air shafts. 



Be sure to ask questions about anything you do not 

 understand. 



Find out whether the school building is warmed by 

 stoves, by hot air, by steam, or by hot water. If hot 

 water or steam is used, notice whether or not fresh air 

 gets into the building at the same time. 



Your teacher will show you how the air comes in at the 

 basement, how it goes up to each room, and how it then 

 enters through the registers. Notice whether there are 

 one or two large registers or several small ones in your 

 schoolroom. Notice the same thing about the ventilators. 



If there are no registers and no ventilators, your 

 teacher will tell you how the room is ventilated. 



If stoves do the heating, see if windows are open to 

 let the air in, and notice whether they are open at the 

 top or at the bottom. 



Decide whether there are any dangerous drafts blow- 

 ing across anybody. 



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