PLA is a biopolymer derived from natural resources such as starch or sugar cane. Among other things, PLA is used in a number of biomedical applications, for example for medical implants such as sutures.
In the filters of tobacco sticks it has the purpose of cooling the steam to an acceptable temperature and therefore giving the consumer a pleasant experience during inhalation
Our toxicologists have analyzed the use of PLA within the tobacco stick filter and concluded that it can be used safely for the intended purpose.
During the experience with IQOS, the filter changes its appearance, color and hardens after the end of the experience. This change is specially designed to remove excess aerosol water vapor and provide a more pleasant experience.