LOOKING BACK IN TIME

 

November 23, 2016



It is almost the end of November of 1909 and those who want to know want to know what is happening in your bedroom at night.

A person required 20 cubic inches of fresh air for each respiration or on the average, 400 a minute and in ten hours of sleep, he or she consumes 130 cubic feet of air. The air of a bedroom ten feet square and having doors and windows closed and occupied by one person would become unfit for respiration in four hours. In the case of two occupying the room, the time would be, of course, decreased to two hours. Keep your doors and windows open!

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