ozone cigarette smoke Use An Generator to Eliminate Odors - Jenesco, Inc Ozone machines for smoke smell:

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[1] Electronic cigarettes increase the risk of asthma [2] and chronic obstructive pulmonary disease (COPD) compared to not using nicotine at all

"Most candles are heavily scented with fragrances made up of hundreds of chemicals including some that can interfere with hormones or irritate the lungs," says Sarah Evans, assistant professor of environmental medicine and public health at the Icahn School of Medicine at Mount Sinai and a member of the Institute for Climate Change, Environmental Health and Exposomics

Pharmacists in particular can be a tremendous resource, and they are sometimes more accessible than physicians