1. The portable household helium gas cylinder is equipped with a single-use bottle valve to ensure that the cylinder is only allowed to be used once and cannot be refilled. For accidents that may be caused by repeated refilling, the refiller bears the legal responsibility and hereby declares.

2. Portable household helium gas cylinders should be stored in a cool, ventilated and dry place, and the ambient temperature should not exceed 55°C. Try to prevent collisions and falls during transportation and prevent damage and deformation of the bottle body.

3. The rupture disc on the cylinder should be protected and not knocked to prevent collision and friction with sharp and hard objects. When using, make sure that it is operated by an adult.