Right then, brother. Dom here again, behind the stick at Kim’s Tavern Super Girl Bar on Huynh Thuc Khang Street. Last time I sat you down it was about vapes – this one is about the silver canisters and the rubber balloons. The funky balls. The bóng cười. The thing your mate told you about after his trip in 2023 when Bui Vien Street was wall-to-wall balloon vendors and nobody was getting in trouble for any of it.
That world is gone. I am not exaggerating, and I am not being dramatic for the sake of a website post. The legal ground shifted under Vietnam’s nightlife in 2025, the police came in hard, and by the time you are reading this in May 2026 the bars that used to sell balloons on Bui Vien have either been shut down, raided, or quietly stopped because the people running them watched what happened to everybody else.
So here is the version of the story you actually need before your night out.
Is nitrous oxide legal in Vietnam in 2026?
The clean answer, straight from the Ho Chi Minh City Police themselves in a public statement issued in March this year: from 2025 onwards, the buying, selling, and use of nitrous oxide Vietnam-wide for human consumption is strictly prohibited, and any act of buying, selling, storing, or transporting it may be severely punished according to the law.
That is HCMC Police on the record. Not a journalist’s interpretation. Not a draft proposal. The actual police force telling the public what the position is.
I am not a lawyer, brother. I am a bartender with a lot of mates who have been through the wringer and a phone full of news bookmarks. But the police statement is the police statement, and it is as plain as it gets.
What’s bóng cười anyway?
For the readers who landed here without the lingo: bóng cười translates directly as “laughing balloon.” It is recreational nitrous oxide (chemical name N2O), the same gas dentists use as a mild sedative. Bars used to dispense it through a metal cracker or a pressurised whip into a rubber balloon, and you would inhale it for somewhere between 30 and 60 seconds of dizziness, distorted sound, and the giggles. Hence the name.
For most of the late 2010s and early 2020s, balloons were everywhere on Bui Vien Street, the backpacker strip in District 1. The price was somewhere between 50,000 and 150,000 VND per balloon, which is roughly two to six US dollars. That cheapness was part of the trap. It felt like a harmless party prop, a bit of stupid fun next to your beer, no different from a glow stick. It was not a harmless party prop. It was a restricted industrial chemical being dispensed to tourists by people who did not have a license to handle it, and the government finally moved.
The law as it actually stands in May 2026
Here is where I have to be honest with you in a way most websites will not be.
The legal framework for nitrous oxide is layered, and it is not as crisply codified as the vape ban. With vapes, we had a clean line: Resolution 173/2024/QH15 banned them outright from January 1, 2025, and there is a published 3 to 5 million VND user fine. With nitrous, the picture is messier.
Here is what we know for certain. The new Investment Law 2025 (No. 143/2025/QH15) came into force on March 1 this year, replacing the 2020 Investment Law entirely. Article 6 of the new law lists 11 prohibited business sectors, including the trade in chemicals and minerals specified in Appendix II – which is where industrial-grade N2O sits under Vietnam’s chemical management framework, originally established by Decree 113/2017/NĐ-CP. The November 2025 push by HCMC National Assembly Member Pham Trong Nhan to add nitrous oxide explicitly by name to Article 6 did not make the final cut, although the Minister of Finance acknowledged the proposal and said ministries would coordinate to refine it. You can read the full account of that National Assembly debate over at Vietnamnet’s English-language coverage.
So would I tell you there is a fixed user fine in dong, like there is for vapes? No. I would be lying to you. The end-user penalty for nitrous oxide is not as cleanly published as the vape one.
What I can tell you with full confidence is the HCMC Police statement from March 2026 covers buying and using, not just selling. The legal direction is unambiguous, the enforcement is real, and the days of “nobody gets in trouble for inhaling a balloon” are over.
What happens to the seller (so you understand the climate)
This part matters because it tells you why no honest, established bar in 2026 wants anything to do with balloons.
Sellers without a license face administrative fines of 20 to 25 million VND if they are individuals, or 40 to 50 million VND if they are operating as an organisation. That is just the starting point. Above a certain value or profit threshold, the offence becomes criminal under Article 190 of the Penal Code, and individual operators face up to 15 years imprisonment. Legal entities face fines of up to 9 billion VND and permanent shutdown.
Fifteen years, brother. For balloons.
That is the climate. So if a bar in Bui Vien still offers you a balloon in May 2026, you are sitting in a venue that is operating openly illegally and the people running it are either reckless, desperate, or unaware that the law has shifted underneath them. None of those are situations you want to be a customer in.
The 2025 to 2026 crackdown – real busts, real numbers
Three operations to know about, in chronological order, because the pattern matters more than any single bust.
July 2025, Lieutenant General Mai Hoang, the Director of HCMC Police, ran a coordinated citywide operation that resulted in 31 arrests in a single sweep. The dismantled supply network had moved 253 billion VND worth of product and generated profits of over 105 billion VND, which is roughly 4 million US dollars. The ringleader, Tran Tuan Kiet, was running three storage and refilling sites on the city’s outskirts. Bars hit in the same operation included Public Luxury, Master SG, Snug Pub, Wlounge, and CoCo Lounge. Police inspections found hundreds of customers using laughing gas inside these venues during the raids. VnExpress International published the full breakdown if you want the receipts.
August 2025, S Pub on Bui Vien Street. Owner Huynh Van Luc, aged 20, and seven accomplices arrested for trading in banned goods. They had been operating from the basement of a building on Bui Vien since May 2022, and had allegedly cleared over 3 million US dollars in profit selling balloons. Police seized hundreds of canisters, balloons, and gas transfer equipment. Bui Vien is the backpacker strip, brother. That bust was on the most touristed street in Saigon.
March 2026, just two months ago. A ring trafficking 59 canisters of N2O totalling over 300kg was dismantled in Tan Thoi Hiep Ward following an early morning inspection on Le Van Khuong Street. Total transactions: over 10 billion VND. Three suspects, full criminal proceedings initiated.
The pattern, my friend, is not slowing down. It is speeding up.
The health story – why the police aren’t even the worst case
Here is the bit that I think most tourists genuinely do not know about, and it is uglier than the legal stuff.
In 2024 a 44-year-old South Korean tourist was hospitalised in Ho Chi Minh City after losing consciousness from inhaling laughing gas. Doctors diagnosed acute poisoning with signs of potential kidney failure. He had been on holiday. He had thought it was a party thing.
But the deeper data comes from Bach Mai Hospital in Hanoi, which Member of Parliament Pham Trong Nhan cited on the floor of the National Assembly in November 2025. In nitrous oxide poisoning cases that arrive at the hospital, spinal cord damage is found in 60 to 100 per cent of users. Eighty-two per cent experience limb paralysis. The substance depletes vitamin B12, which damages the protective nerve sheath, while simultaneously activating the brain’s pleasure centre and causing rapid dependence. Many patients are permanently disabled after only weeks or months of use.
The MP’s words on the National Assembly floor: a substance that simultaneously destroys the nervous system and causes strong addiction has no justification to remain legal, not even for a day.
The cop can give you a fine. The hospital can give you a wheelchair. That is the calibration.
What this means for you on Bui Vien tonight
Practical version. You are walking up Bui Vien at 11pm, the street is buzzing, and somebody waves a balloon at you. Here is the math.
If you take it, you are using a banned recreational substance. The HCMC Police have stated publicly that buying and using is in scope. You are sitting in a venue that the police are actively and openly targeting. As a foreigner you also face the additional risk that any administrative processing in a raid can be flagged to immigration, which means a visa hassle on top of whatever else is going on.
The wider point, which the Wikipedia entry for Bui Vien Street and the recent Tripadvisor traveller reports both confirm, is that the balloon scene that drove a lot of the late-night Bui Vien energy has been gutted. The crowds are noticeably thinner after 11pm now. The street has changed because the substance that fuelled half of it is being prosecuted out of existence in real time.
If you have already had a read of my piece on the Vietnam vape ban you will recognise the pattern straight away. Vietnam said something is banned, the tourists kept doing it for a while because nothing seemed to happen, and then the fines started landing. Same story, different substance. The lag between “is this still ok” and “you have just been arrested” is shorter than most travel forums seem to realise.
Where to go instead
The honest bartender pitch, my friend.
You are in Saigon for a good night. You want cold beer, smiling faces, music that does not require you to hand your passport over to a man in a uniform at 2am. Huynh Thuc Khang Street, where I work, is two minutes in a Grab from anywhere in District 1. We have Kim’s Tavern Super Girl Bar at number 20 and Bar 22 Girl Bar at number 22, sister venues, both rated above 4.8 stars on Google, both packed every weekend.
No balloons. No metal crackers. No silver canisters. No raid risk. Just a properly licensed bar with cold Tiger draught, a couple of dozen of the best girls in the city, and a manager (the legendary Huyen) who will personally make sure your first beer arrives faster than you can take your hat off.
Come down. Skip the funky balls. Have a proper night.
Lots of love from all the girls at Kim’s Tavern Super Girl Bar xoxo
