Compared to combustion (the act of a material burning), vaporizing should create only a fraction of the odor. In homes where people are vaping frequently, particularly if they sit in one part of a specific room to do it each time, the odors can be noticeable to an outsider.

While their scents generally dissipate quicker than tobacco or marijuana smoke, most vapes leave a distinctive smell behind. If you suspect someone in your home has vaped recently, smell their clothing or the area they were standing to try and catch a whiff.

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Vaping can leave residue on your walls since it attracts dirt, particularly if the vapour contains high vegetable glycerin (VG) levels. Since VG is a thick, viscous liquid, it easily sticks onto walls, leaving behind a sticky residue that can trap airborne particles, causing staining over time.