Longman Dictionary of Contemporary English
Douglas Harper's Etymology Dictionary
also nonsmoker, "person who does not smoke," 1846, in reference to railways. Non-smoking (adj.) is attested from 1891.
Wiktionary
alt. somebody who does not smoke tobacco. n. somebody who does not smoke tobacco.
Usage examples of "non-smoker".
Furthermore, smokers weigh less to start with, so they end up about the same as non-smokers after a year of not smoking.
They were both travelling in the 747's upper deck, reserved for business class non-smokers, and Sisodia had moved into the em-pty seat next to Chamcha like air filling a vacuum.
Ungerlieder and Shaeffer (UCLA) and who showed absolutely no brain differences between them and non-smokers nor did it confirm any increase in IQ that the Coptics had claimed.
Rural smokers get lung cancer more than rural non-smokers, and urban smokers get cancer more than urban nonsmokers.
Smokers under 30 are not less fat than non-smokers, which suggests smoking doesn't help weight-wise.
In deference to the non-smokers, his cigarette packet was still in its Cellophane.
Some non-smokers and non drinkers can have an extraordinarily acute sense of taste and smell.