https://www.airportsmokingzones.com/vietnam/hph-smoking-at-hai-phong-airport/
Smoking at Hai Phong Airport (HPH) - Outdoor Area 2026
Sep 25, 2026 - Open-air smoking outside the terminal is permitted at Cat Bi Airport (HPH); the airport publishes no designated smoking area or indoor room.
hai phong airportoutdoor areasmokinghph