"Walang matigas na tinapay sa mainit na kape!"
Second-hand tobacco smoke contains a larger amount of harmful substances, Inhaled directly. Smoke contains 5.3 to 43 nanograms of carcinogenic nitrosamines. Compared to 680 to 823 nanograms when inhaled second-hand. The second hand smoker also inhales eleven times the volume of smoke itself, 18000 nanograms in all. So the risk to the surrounding population is far greater than to the smoker himself.