Well, this is a little awkward in hindsight. In the early 20th century, the H.W. John-Manville company was a major asbestos manufacturer for roofing and insulation materials. Like this advertisement claims, asbestos were a necessity for housewives on ironing day, for dentists who needed to fill cavities, and for the construction of farms, cars, and power plants. Even theater curtains and table mats were infused with Johns-Manville-manufactured asbestos.
"Hundreds of J-M Products pour into every avenue of life," the company boasted, unwittingly dooming scores of eager customers to cancer and other asbestos-related diseases. In the 1980's, the company faced major class action lawsuits, culminating in a chapter 11 bankruptcy protection that took five years to resolve.
See the full ad here