The R101 (but not the R100) had a smoking room: https://www.airshipsonline.com/airships/interior/R101Interior.htm https://www.airshipsonline.com/airships/interi

The R101 (but not the R100) had a smoking room: https://www.airshipsonline.com/airships/interior/R101Interior.htm https://www.airshipsonline.com/airships/interior/R101Interio... "A unique example of design. The R101 was fitted with a smoking room on the lower deck able to seat 24 people. The floor and ceiling were made of light asbestos with a thin sheet of metal on the floor. The walls were the same construction as the rest of the ship, being made of cloth. The smoking room was not considered a hazard to the ship as all precautions had been taken with materials in construction. This is where you could retire after dinner and enjoy a cigar and postprandial drink."