Cladosporium is a type of mold commonly found both indoors and out.

Health effects: Cladosporium species are rarely pathogenic to humans, but have been reported to cause infections of the skin and toenails as well as sinuses and lungs. The airborne spores of Cladosporium species are significant allergens, and in large amounts they can severely affect asthmatics and people with respiratory diseases. Cladosporium species produce no major mycotoxins of concern, but do produce volatile organic compounds (VOCs) associated with odours.