Helium escapes faster the more the balloon is heated, stretched or rubbed, so almost all care advice comes down to keeping conditions stable. A room at normal air-conditioned temperature, out of the sun, is the best place a balloon can be.
The single most damaging thing in Dubai is a parked car. The interior heats far beyond what latex tolerates, and a set that would have lasted all evening can be lost during a short stop. Direct sunlight through a window does the same more slowly, and a stream of cold air from an air conditioner both shrinks the gas and pushes the balloons against walls and spotlights.
Handling matters too. Do not drag balloons along the floor or across sand, keep them off rough textured ceilings, and if you are asking latex to survive into the next day, order it with HiFloat, the gel coating that seals the inner wall and typically multiplies float time several times over.
- Store indoors at a steady room temperature, away from direct sun
- Never leave balloons in a parked car, even briefly
- Keep them out of air conditioner airflow and away from hot spotlights
- Avoid rough ceilings, sand and dragging balloons along the floor
- Ask for HiFloat on latex when the set has to last into the next day