Heat-not-burn products differ from e-cigarettes in that they use actual tobacco rather than the flavored e-liquid commonly found in e-cigarettes. The idea behind heat-not-burn is to give users the sensation of smoking a traditional cigarette without inhaling combusted tobacco. IQOS appears to be similar to other e-cigarettes. It looks like a long pen. Philip Morris International manufactures the Iqos brand of heated tobacco and electronic cigarettes. It was first introduced in November 2014 with the release of the Iqos tobacco heating device in Japan and Italy, before gradually becoming available in other countries.
BELOW IS GIVEN THE COMPARISION BETWEEN IQOS AND CIGARETTES
Tar is the residue from smoke left over after a cigarette has burned. IQOS does not. IQOS does not emit tar because it heats tobacco rather than burning it. It generates a particulate residue that is radically different from “Tar” and incorporates far fewer hazardous chemicals. Switching completely to IQOS is less damaging than smoking as usual. 
From concept to reality, every aspect of IQOS is meticulously designed to provide a heated tobacco experience. The heart of IQOS is IQOS Heat Control TM Technology, which is responsible for heating tobacco to precise temperatures of up to 350 degrees Celsius without burning it. Enjoy your tobacco moment while it is still warm and not burnt.
IQOS is a better option than continuing to smoke. Because IQOS emits less odor than cigarettes, it is less likely to bother those around you. IQOS has a lower lingering odor on hands, hair, and clothing than cigarettes.
IQOS has undergone rigorous scientific evaluations, including 18 non-clinical and 10 clinical studies involving thousands of participants. The available evidence indicates that, while IQOS use is not without risk, switching completely to IQOS poses less risk to your health than continuing to smoke cigarettes.
IQOS does not burn tobacco or emit smoke, and it significantly reduces levels of harmful chemicals such as carbon monoxide. It has no adverse effect on indoor air pollutants. This means that the few compounds found were at very low concentrations, far below the maximum exposure levels defined in existing air quality guidelines.
Cigarettes burn tobacco, which emits a lot of carbon monoxide. When compared to cigarettes, IQOS produces 98% less carbon monoxide (CO) and significantly lower levels of other harmful chemicals.
IQOS was created by Philip Morris International and is only for adult smokers. IQOS employs a novel heating system that heats tobacco sticks (HEETS) at a much lower temperature than the burning of a lit cigarette. This produces nicotine vapor without causing the tobacco to burn.
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Heating tobacco releases flavors and nicotine, allowing adult smokers to enjoy tobacco without the use of combustion. As a result, IQOS as a tobacco heating device is becoming a popular smoking alternative among adult smokers, as it allows them to use tobacco without the use of smoke, ash, or the odor of cigarette smoke.
