These balloons can be inflated with air or helium.
If you inflate the balloon with air, it will not float! If you inflate the balloon with helium it will float for a few hours.
Inflate your balloons only the size stated on the package of balloons, do not overinflate.
Once inflated, rub the balloon gently with a wool cloth to create static electricity.
Bear in mind that confetti filled balloons will float for less time than a standard helium balloon, due to the weight of the confetti inside, so inflate the balloons as near to your event as possible.