20-year-old bar owner Huynh Van Luc directed his staff to sell nitrous oxide (N2O) to attract customers and supply other businesses, estimated to have earned hundreds of billions of dong.

Laughing gas creates a false euphoria similar to a drug high, prolonged use can lead to addiction, affecting the nervous system and endangering life.

A 44-year-old South Korean man was found unconscious on a street in downtown Ho Chi Minh City. Doctors determined he had overdosed on nitrous oxide (laughing gas).