Colorado marijuana regulators are finalizing a ban on certain additives in cannabis vape products in response to the spread of a lung disease linked to e-cigarettes and marijuana vape pens.
The state's Marijuana Enforcement Division has proposed final rules that include prohibiting specific ingredients in marijuana vaping products.
Those include Polyethylene glycol, Vitamin E Acetate and Medium Chain Triglycerides.
Officials say the additives can be used as thinning agents for THC, which is too thick to be atomized or vaporized in vaping products.
A vaping-related lung disease has sickened nearly 1,300 people and killed at least 25 nationwide.
State health officials say there were nine cases reported in Colorado as of last week.
