Attention:
1. To insure the life span of air pump, youd better not continuously inflate for more than 15 minutes, otherwise the long-term operation of the pump will make the heat excessive that resulting in damage.So please stay at less than 15 minutes.
2. It is not suitable for giant inflatable items, only for air mattress, inflatable boat, pool toys, swimming ring, vacuum bags etc.
3.The air vent and inlet can not be blocked at the same time in the progress of using.
4. While using, please make sure there is no sand, pebbles around the pump.