//Japan

The Japanese Institute of Public Health releases a study comparing concentrations of several harmful compounds (tar, carbon monoxide and tobacco-specific nitrosamines) in the mainstream aerosol and filters fillers in a HT system, compared with those from combustible cigarettes. While nicotine levels in the heated tobacco aerosol were comparable, the concentrations of TSNAs were – according to researchers – 80% lower and carbon monoxide 99% lower to those in combustibles.