During the topics with bronchial asthma, IgE antibodies unique to TDI, MDI, or hexamethylene diisocyanate (HDI) have been only found in one particular topic who was occupationally uncovered. No distinctions in the prevalence of respiratory indicators were observed. Wilder et al. (2011) didn't find a major rise in the prevalence https://costabull.com/product/toluene-diisocyanate-tdi-80-20/