Compare that to an ultrasonic diffuser, which drips a few oil drops into a tank of water and uses vibration to fling a damp fog into the room
Cochrane Database of Systematic Reviews 2009, Issue 1
PMID 11965518
When did they put warning labels on cigarettes
In October, Wasilewski complained in a letter to Senator Moss in connection with the discriminatory legislation proposed by the tobacco industry that there are indications that large sums of money would be diverted by the cigarette companies from broadcast advertising to promote their products by other means, and that it appeared that vast expenditures would be made for promotional programs employing such devices as coupons, premiums, contests, point-of-sale promotion, and samples as well as advertising in print
The findings may be due to two factors: the populations growth and ageing, which have intensified smoking and increased disease burden, and global anti-smoking initiatives over recent decades, such as price and tax controls, public smoking bans, public awareness campaigns about tobacco risks, and enhanced global cooperation, as outlined in the WHO Framework Convention on Tobacco Control (FCTC) 8-11
