Firstly, an Air Orb is a glass orb that has been used by the Obelisk of Air to be charged. This is done by using the Charge Air Orb spell, which you will need to have level 66 Magic for to be then used on the obelisk itself. air orbs osrs The spell needs to have an unpowered orb, as well as 3 cosmic runes, 30 air runes, with 76 Magic experience as well.