During the subjects with asthma, IgE antibodies unique to TDI, MDI, or hexamethylene diisocyanate (HDI) were only found in one particular subject who was occupationally exposed. No distinctions during the prevalence of respiratory indicators were being identified. Wilder et al. (2011) did not find a significant boost in the prevalence https://costabull.com/product/toluene-diisocyanate-tdi-80-20/