VENTILATION 



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tone of the body are naturally lessened. In such 

 condition the numerous disease germs that infest the 

 air are offered a good opportunity to give us colds, 

 catarrh, tuberculosis, and many other chronic diseases. 



What can we do to 

 avoid such unpleasant 

 results ? Form the 

 habit of having the 

 air of rooms in which 

 we spend our time as 

 nearly like out-of- 

 door atmosphere as 

 possible. In summer 

 this should be done 

 by opening doors and 

 windows. But even 

 in warm weather some 

 people keep both 

 closed, because so 

 much dust enters. 

 How unwise such a practice is ! 



Girl dusting with a cloth moistened in liquid 

 veneer or some similar preparation. 



A few moments ' 

 use of a moist cloth will remove the dust, but how 

 to make up for the vigor lost by rebreathing the 

 breathed-out air is difficult to tell. Many persons 

 try to do this by taking various medicines. This is, 

 at the best, an expensive and most unsatisfactory plan. 

 For Nature's remedies, fresh air, wholesome food, 

 pure water, and judicious exercise, medicines are, 

 indeed, poor substitutes. 



