just got back from 3 weeks in india, with 4 protanks, 7 clearos, evic, 4 ego batteries, and about 7-8 30ml e-juice bottles. no problems really always had all my vaping kit with my carry on, was questions several times at several airports, never any issue, one military guard in calcutta asked my to fire it up in the terminal to satisfy his curiosity. vaping in smoking lounge is gross. stealth vaping in bathrooms is workable for the time being. almost forgot to mention, lots of leaky things clearos, bottles, a little messy, had everything compartmentalized into zip locks to reduce contamination. i squeezed out excess air from juice bottles but not much help.