Show Humidity One of the causes of colds and respiratory troubles in winter for many is that they sleep in homes where the air is hot and dry This dries out the membranes of the head and nasal passages and stops the normal flow of mucous which carries off cold germs ONE CAN do something about this by seeing that the humidity level is controlled Vapor machines are not cost cost- ly For babies they are sometimes sometimes sometimes some some- times a must Those living with radiators can keep water waler on top of them Those with dry-air dry furnaces furnaces furnaces fur fur- naces should keep water in inthe inthe inthe the furnace many have a special place for it so the theair theair theair air will not become too dry Or spray-nozzle spray attachments can be fitted inside ducts WINDOWS can can- be opened during the warmest part of the day on days of high humidity All these steps help ward off colds |