Now, as just stated, controlling humidity levels throughout a biodome and all of its apartments is
primarily for health reasons. In order to do this, then, it is important to keep the relative humidity of
the biodome and all of its apartments within the optimum zone, which typically lies between 45%
and 55%, according to an article in Popular Science. Keeping relative humidity within this zone,
then, would inhibit the survival of various viruses, including cowpox, influenza, measles, polio, and
herpes. In addition, keeping relative humidity within this zone would restrict the growth of many
bacteria and mites and fungi. Further yet, conditions such as respiratory infections, allergic rhinitis,
and asthma would be completely eliminated when this optimum humidity range is maintained.
Finally, with this humidity range, certain harmful chemical interactions and the production of ozone
would be minimized as well.