Juul, the electronic cigarette company that has dominated the American vaping market, is banning vaping in its offices.

The company announced the ban in an email to staff at its San Francisco offices this past Tuesday.

Juul told employees that anyone who wants to vape on company property must do so at a specially erected tent outside, according to The Wall Street Journal.

'It may feel nonsensical to prohibit at-work use of the very products we work hard to create and promote,' Juul CEO Kevin Burns told staff in an email.

Juul, the electronic cigarette company that has dominated the American vaping market, is banning vaping in its offices

'But the bottom line is we need to comply with legal requirements the same as any company.'

The company was founded by ex-smokers and many employees vaped openly inthe office until this.

Burns also told employees to 'rest assured that we are committed to exploring options for team members who desire to vape while at work.'

He wrote in the email that his company received an inquiry from the city about vaping practices in its office.

Juul is a company whose signature product is a thumbnail-size cartridge filled with flavored nicotine juice.

It is designed to give users the same effect of smoking a traditional cigarette but without the smoke, tar, and ash.

In the three years since it was introduced to the market, Juul has become worth $15billion.

'Can people please stop vaping in the office?' this Twitter user said

Another Twitter user wrote: 'I went to the back office to microwave my ramen noodles and 1 of my coworkers was vaping back there'

This Twitter user wrote she was surprised to see a co-worker vaping

'I don't mean to be a jerk but who thinks vaping inside in a shared office space is acceptable?' wrote another Twitter user, who added 'WTF?'

It has grabbed more than 70 per cent of the e-cigarette market in the United States.

It currently has 800 employees worldwide, according to Inc.

Companies have had to grapple with whether to allow employees and customers to vape.

Exxon Mobil has specially designated smoking areas that allow employees to vape, while CVS bars its workers from using e-cigs and regular cigarettes anywhere on company grounds, according to the Journal.

Vaping is considered a safer alternative to cigarettes. Users like it because it allows them to transition away from the original

Starbucks and Walmart don't allow customers or employees to vape, though McDonald's says its workers and diners are welcome to if they wish.

In the U.S., 24 states and the District of Columbia have banned smoking in the workplace, but just three - New Jersey, Utah, and North Dakota - have added e-cigarettes to the laws.

Vaping is considered a safer alternative to cigarettes. Users like it because it allows them to transition away from the original.

But office colleagues are unhappy with vapers because of the noise they make while vaping.

So far, 12 states and several cities have banned vaping in the workplace, though the ban doesn't appear to be rigorously enforced.

Last month, Juul bowed to public pressure and stopped selling most of its flavored nicotine products after backlash grew over its appeal to children and teens.