filter for cigarette Premier Tips Regular White 200 Tips Per Bag – Tobacco Stock Exhibit: When cigarette filters were

Ammonia found in cleaning products and added to cigarettes to increase the nicotine hit

Some smokers prefer Marlboro Ice Blast or Marlboro Purple Fusion because of their cooling capsule experience

Smokers will also cover some of the ventilation holes, consciously or unconsciously, with their fingers and mouth while they are smoking

37 Acknowledgments The authors wish to thank Dr Alison OMara-Eves and Dr Dylan Kneale from the EPPI-Centre, at the Institute of Education (University College London), for acting as independent external assessors to conduct critical appraisal of each of the studies included within the two source reviews