E-cigarettes are not banned in some states, but the US state of Colorado has decided to ban them from its schools.
In a decision published on the Colorado Department of Education’s website on Monday, the state said it will take a wait-and-see approach to its health impacts.
E-cigarettes, which are unregulated, contain no nicotine, and they do not cause cancer, asthma or other respiratory illnesses.
Colorado’s move comes after other states in the US have adopted similar measures.
It comes as e-cigarette sales have skyrocketed in recent months, with many US states seeing a spike in sales.
The US has the highest e-cig use rate in the world and it has been blamed for a large increase in cancers and other diseases in recent years.
The use of e-cigarettes has been legal in Colorado since 2010, and since then, the city of Denver has taken the lead in pushing the ban.
In 2014, the US Supreme Court ruled that the states ban on smoking in public schools was unconstitutional.
Eighty-two US states and the District of Columbia have passed similar bans, and many states have begun to restrict the sale of e, nicotine-containing products in schools.
The Colorado law was drafted by the city, and is being enforced by the state’s public health department.