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10.1016/j.free radbiomed.2019.12.002 Free

To permanently kill odors with ozone (and not just mask the odors) you must flood the treatment area with a very high concentration of ozone gas for at least 30 minutes

Dimensions: 3467 x 5200 px | 29.4 x 44 cm | 11.6 x 17.3 inches | 300dpi Date taken: 10 April 2010 Location: Savannah, Georgia, USA More information: Photo credit: Martin Battilana Photography

This work, which stemmed from a collaboration between researchers at the KTH Royal Institute of Technology in Stockholm and the University of Illinois, and led by Richard Olsson and Mikael Hedenqvist, provides a proof-of-concept for synthesising filters from recycled PET to give cigarette filters which absorb up to 20 times more cigarette smoke than classic filter tips

These chemicals slow evaporation significantly compared to natural tobaccos