Fungal disease awareness week highlights the importance of diseases caused by exposure to fungi/moulds in the workplace. It also highlights the importance of preventing exposure and of recognising symptoms or diseases so that workers health is protected and improved. Fungal/mould exposure is associated with allergies, infections, neurologic and toxic effects. Some workers may be more susceptible to fungi/moulds than others. Occupational disease claims linked to fungal/mould exposure is lacking however cases of mould exposure have been investigated. It is not easy to link worker exposure to moulds at work as microbial agents such as fungi/moulds and their by-products (beta glucans, mycotoxins) are ubiquitous (everywhere) in the environment. However, thorough investigations may link the source of exposure to immunological findings.