Indoor microbiome

The indoor microbiome is the ecosystem of indoor spaces. While there is a growing literature on the composition of indoor microbial communities, it is unknown what the implications are for the presence or absence of specific species for human health.

Indoor air has higher concentrations of bacteria and endotoxins (namely pro-inflammatory lipopolysaccharides) and correlates directly with the number of dust particles. Higher air exchange rates and lower temperatures reduced concentration of endotoxins.