[Biophysics] Re: reduce amount of exhaled water-vapor?

[Dr Engelbert Buxbaum]

no_child_left_unleashed at yahoo.com.sg wrote:

> Can anything be done by a homedweller to safely reduce the amount of
> water-vapor he exhales?

Yes, stop breathing (sorry, couldn't resist).

Humidity in living quarters is best controlled by ventilation. That need
not be excessive, 10 min 3-4 times a day, with all windows open and
heating switched off is quite sufficient. During that short time walls,
furniture and the like do not noticably change temperature, so that the
heating system only has to warm up the air afterwards, this is
relatively cheap because of its low heat capacity.

The use of cooling systems should be limited to really extreme
conditions, i.e. ambient temperatures in excess of about 40 degrees
Celsius. Temperatures below that value can be controlled by appropriate
building construction to keep room temperatures in the upper 20s. This
is not only cheap but much healthier when changing between hot outside
and cold inside. And people have done that for thousands of years before
aircon became available.

Fup set to bionet.biophysics