The NO DROPS system is an essential safety device, designed and patented specifically to avoid any residue falling from the cone into the auricular opening. Always ensure the presence of this device inside the cone.
PATENTED CLEANEAR

Safe and efficent, they extinguish the flame should combustion exceed the normal limit. The devices have been tested by the Department of Materials Engineering and Industrial Technologies of the University of Trento, which has certified them to be fully effective in extinguishing combustion.