In the thioacetone TIWWW, Lowe says that "the workers in the laboratory did not find the odours intolerable". It sounds like in higher concentrations it just

In the thioacetone TIWWW, Lowe says that "the workers in the laboratory did not find the odours intolerable". It sounds like in higher concentrations it just overwhelms and numbs a strong reaction people have at even extremely low concentrations.