HEETS, also known as HeatSticks in some markets, are specially designed heated tobacco units intended for exclusive use with IQOS blade heated tobacco device (IQOS, IQOS 2.4, IQOS 2.4+, IQOS 3, IQOS 3 Duo, and IQOS 3 Multi).

HEETS are made up of elements that include a tobacco plug, hollow acetate tube, polymer-film filter, cellulose-acetate mouthpiece filter, and outer and mouth-end papers. 

The consumer inserts a HEETS into the IQOS holder, where it is heated without combustion. The consumer can then draw on it to enjoy the taste of heated tobacco. HEETS contain nicotine which is addictive and not risk-free.

HEETS cannot be used with the IQOS ILUMA series of heated tobacco products.