all our water distillers are inside. you are correct, the gases in water can be released into the house air....just as the water in the toliet is in everyone's homes.....according to studies, you flush that toilet and the vapors get into every kitchen cabinet/room, etc....and those city people and their chemical filled water#########################################what a mess that is when they shower or bath, etc....................

asthma?
a self-created health issue that could have started by mother's feeding habits/drugs, etc...or just being poisoned..and the gases released from distilling water would be far less than every day common house chemicals in the living space air...

i would suggest distilling water as a step towards reverseing asthma.

mh