VENTILATION OF BEDROOMS

Rooms which are to be slept in after having been occupied during a whole

evening must be thoroughly ventilated before the occupant prepares for

bed. Doors and windows must be thrown open for several minutes, the gas

or lamp put out, and the air completely changed, no matter how cold it

may be outside. This is the only way to obtain refreshing sleep. On

going to bed the usual ventilating arrangements should then be followed,

but the great point is to change the air thoroughly first.