You should always respect the rules of the place you’re in, and use common sense when using IQOS around other people, including children under the age of 18. You can use IQOS in some indoor public places if you see the ‘IQOS friendly place’ sign.
If you’re travelling on a plane, you should ask permission from airline staff before using IQOS – most airlines currently don’t allow you to smoke or use tobacco alternatives on their aircraft.
The make up of IQOS aerosol is significantly different from cigarette smoke.