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Tob Control 11:i40-i50 doi:10.1136/tc.11.suppl_1.i40
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Cigarette filter ventilation is a defective design because of misleading taste, bigger puffs, and blocked vents

Table 1

Chronology of selected industry documents involving taste, puff volume, and vent blocking from various manufacturers 1955 to 1994*

Philip Morris BAT/B&W/Imperial RJ Reynolds Lorillard
*The cites in this table are meant to be illustrative rather than representative of materials on this topic to be found on the internet. We have found that new documents are added frequently. We are not able to summarise all the documents considered and have left out documents that in large part duplicate information found in other documents (for example, separate reports of the same study).
1955 Puff volume 75 Taste 49
1956 Taste 53
1959 Taste 50,55
1960 Taste 54
1967 Puff volume 86,87
Vent blocking 125
1968 Vent blocking 122
1969
1970 Puff volume 97
1971 Puff volume 78
1972 Puff volume 79
1974 Puff volume 109
1975 Puff volume 76,81
1977 Puff volume 77,82,107 Puff volume 108 Vent blocking 120,121
Vent blocking 108
1978 Puff volume 88 Puff volume 112
1979 Puff volume 103 Puff volume 101
1980 Puff volume 74 Taste 59 Puff volume 93,94
1981 Puff volume 95,96
1982 Vent blocking 123,124 Taste 47 Puff volume 102 Puff volume 111
Vent blocking 119
1983 Puff volume 80
1984 Puff volume 84 Puff volume 20
Vent blocking 130
1985 Vent blocking 131
1986 Puff volume 98
1987 Puff volume 105
1989 Taste 60
1990 Taste 65 Puff volume 92
1994 Taste 44,45 Puff volume 110

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