Regulators have been slow to act on paint strippers, other products containing methylene chloride. ….A Center analysis identified at least 56 accidental exposure deaths linked to methylene chloride since 1980 in the U.S. Thirty-one occurred before Johnathan Welch died, 24 after. The most recent was in July. Many involved paint strippers; in other cases victims used the chemical for tasks such as cleaning and gluing carpet, according to death investigations and autopsy reports the Center obtained through Freedom of Information Act and state open records requests. ….