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The health risks of smoking were clearly outlined in a canonical study of disease rates (including lung cancer) and smoking habits in British doctors in 1950 and have been further elaborated in detail over the following seven decades 1,2

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Figure 1 Nicotine Nicotine is the main psychoactive constituent present in both tobacco cigarettes and electronic cigarette liquid

Particulate Capture Efficiency: Ensure HEPA filters are rated to capture at least 99.7% of particles 0.3m