Development of a novel method to measure material surface staining by cigarette, e-cigarette or tobacco heating product aerosols.

摘要: Abstract Tobacco smoke (CS) may visually stain indoor surfaces including ceilings, walls and soft furnishings over time. Potentially reduced risk products (PRRPs) such as e-cigarettes (EC) tobacco heating (THP) produce chemically less complex aerosols with significantly levels of toxicants, particles odour. However, the potential effects EC THP on staining are currently unknown. In this study, an exposure chamber was developed a model system to enable accelerated wallpaper cotton samples by scientific reference cigarette (3R4F), three (glo™, glo™ pro, sens) e-cigarette (iSwitch Maxx). Exposure 3R4F cigarettes caused greatest level staining, which higher than glo™, sens or iSwitch Maxx aerosols, all showed relatively little colour change. 200–1000 puffs resulted in visible dose response effect not observed following aerosols. Aging for 4 weeks post-exposure changes levels, however PRRP were minimal lower exposed samples. For first time, diverse PRRPs across nicotine continuum have been assessed vitro their impact surface staining. CS increased whereas also comparable untreated control