“…An indoor lifestyle leaves occupants at the mercy of uniform building microbiota, where microbial exposomes trapped indoors can reach higher concentrations and persist longer than those outdoors [ 1 , 3 , 6 , 7 , 8 ]. Microbes including Aspergillus, Penicillium, Trichoderma, Fusarium, Chaetomium, Streptomyces, Bacillus, and Nocardiopsis species, which produce bioreactive metabolites such as mycotoxins [ 9 , 10 , 11 , 12 , 13 , 14 , 15 ], immunoreactive substances [ 16 , 17 , 18 ], mitochondrial and ionophoric toxins, and fungicides and antibiotics, contribute to the building exposome in wet buildings worldwide [ 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ].…”