According to the Study published in Pediatrics Journal, Exposure to moisure and mold in the main living room not the bathroom.
Moisure in children bedrooms is associated with asthma
The study showed that increased moisture in children bed room have the highest risk of asthma.
Children with atopy will be most affect
The study also revealed that children with a condition called atopy and that is increased senstitivity of children is associated with increased risk of moisture damage to the lungs of children and thus asthma will follow.