Patient 1 had been applying tape to pipes in non-ventilated, underground apartments for 5 days before he developed a slow reaction time, headache, nausea and vomiting. He worked 10 h per day with a 10-min break in both the morning and the afternoon. The adhesive tape he used produced a strong smell, and he did not wear any personal protective equipment. Patient 2 had been painting internal walls for 6 days before he developed headache, nausea, vomiting, diplopia and intermittent drowsiness. He worked in confined spaces for up to 8 h at a time without any protective equipment. He complained of irritated...]]>