Can humidity or dampness be bad for a guinea pig's health in large doses? My pigs have had to move to the cellar during the recent heat wave and it's been raining a lot, making it more damp than normal down there. [Our basement never floods, but it's not finished so it is leaky.] I'm worried about their hay getting moldy-- how can you tell if it is? Or maybe them having respiratory problems. Is it worth buying a dehumidifier to avoid health problems?
Glad to be of some help. The heat is awful. We had a terrible time keeping our guinea pigs cool this past summer. We found the best place was in a sturdy hutch/run outside under a leafy tree.
(I looked it up because I had kitties w/ allergies and wanted to run the humidifier at night for them but didn't want to risk the pigs.)