You should no longer see any glowing or smoke coming from the cigarette butt. [substeps] If you have an ashtray, push the cigarette's lit end into it until the heat and smoke stop.
[header] How to recycle cigarette filters [title] Extinguish the cigarette by grinding out the flame. [step] For safety, extinguish cigarettes fully before attempting to recycle them. You can do this by throwing the cigarette on the ground, stepping on it, and twisting your foot.