CORESTA Congress, Quebec, 2014, Smoke Science/Product Technology Groups, ST 54

Indoor air chemistry (IAC): comparative study between conventional cigarette and heat-not-burn technology

Philip Morris International R&D, Neuchâtel, Switzerland

Philip Morris International (PMI) is developing products with the potential to reduce the risk associated with smoking. The Electrically Heated Tobacco System (EHTS) operates by heating a tobacco stick with a holder at a controlled temperature. By heating rather than burning, it is possible to substantially reduce or eliminate the formation of a large number of Harmful or Potentially Harmful Constituents (HPHCs). In addition to the decrease or elimination of HPHCs from the mainstream aerosol, the EHTS does not produce sidestream aerosol in the same manner as conventional combusted cigarettes do, i.e. the aerosol is only generated when puffs are taken on the system.

Consequently, the potential impact of using the EHTS indoor on the air quality is expected to be very different from lit-end cigarettes. To verify this hypothesis, PMI has built an environmentally controlled furnished room and developed analytical methods to measure potential air pollutants in the room, under diverse simulated indoor environments.

The analytical methods developed so far focused on: (i) ISO measurement standards for Environmental Tobacco Smoke (ETS) to allow a comparison of the EHTS emissions to those of a lit-end cigarette and, (ii) selected carbonyls (acetaldehyde, acrolein, crotonaldehyde, formaldehyde) and volatile organic compounds (acrylonitrile, benzene, 1,3-butadiene, isoprene, toluene).

The presentation will focus on the room technical features and capability, the methods' development and challenges to detect and quantify background pollutants levels, the methods' achieved performances, results obtained during the methods validation and the plans to further extend the portfolio of analytes.