Frequently Asked Questions Thirdhand Smoke Resource Center Cannabis smell shifts from full skunk to a hint of citrus : NPR Drug Sniffing Dogs: What Can They Smell? 100% Free Consultation 5 Methods Teens Use to Mask the Smell of Marijuana Vaping cannabis associated with cough, bronchitis and wheezing, study finds CNN Squirrels are vaping now but it's not what it looks like. In cities like Philadelphia and London, they're chewing on discarded vapes, drawn in by the smell and ending up ingesting harmful