Healthy Humidity Levels

[Guest guest]

See this is the delima. Here is a guide to healthy humidity levels

and it says below 40% levels spreads viruses and disease. I've read

this before and this is why I used to keep house about 50% all year

round despite windows sweating in very cold weather. I wish someone

would figure this out definately.

I think reason they are saying below 40% spreads disease because

sinuses (and perhaps lung tissue? I don't know about latter), get

dry and develope fine cracks. This allows germs into body. That is

why germs that are present in environment and sinuses all year round

only cause respiratory disease, i.e. colds, in the winter and

why 'colds' are called colds because they happen in winter when air

gets dry.

So my house is around 25-30 lately. Are other keeping their houses

this dry, or just about 40%.

Then there is problem of windows sweating which can cause damage to

wood and drywall around windows.

Do newer insulated windows *not* sweat like old wood rope and pulley

windows do?

Thanks. Here is one link but I've read this lots of places:

http://www.kiltox.co.uk/guides & info/humidty.htm