CORESTA Congress, Quebec, 2014, Smoke Science/Product Technology Groups, ST 31

CelFX™ Matrix Technology super slim filter comparison with commercial carbon filters

Celanese, Narrows, VA, U.S.A.

Small diameter or super slim cigarettes (5.0-5.5 mm) have approximately two times the smoke velocity and about half of the filter residence time of large diameter cigarettes (7.6-7.8 mm). This limitation, coupled with lower active ingredient loadings, results in a significant challenge for smoke constituent reduction in small diameter cigarettes. The CelFX™ super slim platform has been evaluated for its potential to offer improved constituent reduction of 20% and greater, without sacrificing pressure drop. Smoke results compare commercial super slim carbon filter designs with super-slim CelFX™ carbon filter designs with 5 to 6 mg/mm carbon loadings.