do cigarettes contain lead Cigarette smoke contains thousands of chemicals, many of which are toxic and harmful to the human body. Here's a detailed breakdown of some of the most dangerous constituents and their effects: 1 What Is In A Cigarette?
Description
Two other danger chemicals - acetoin and 2,3-pentanedione - were detected in 46 and 23 of the samples

The first: Damage to the alveolithe tiny air sacs in your lungs responsible for gas exchange

doi:10.18332/tid/156836 11
Questions in the test include asking when an individual smokes their first cigarette of the day, how many cigarettes they smoke each day, and whether they would smoke even if they were so ill as to be confined to their bed

S2CID 8445279

Philip Morris USA is the largest cigarette manufacturer in the United States, producing and selling cigarettes exclusively to customers within the country