This instantaneously creates an area of zero air pressure that lasts for ten seconds. Please use the rules for Vacuum on p. B437 if this is used as an attack.

This spell is often used to summon a vacuum elemental, but this would require an assistant to cast the spell at the appropriate time, or maintaining this spell for the duration of casting Summon Vacuum Elemental.

Explosive Decompression [80] 
    Control (Force: Atmospheric Pressure, Common) 4 [56] 
    Control (Force: Atmospheric Pressure, Common) 6 [24] 
        Doesn't Increase Radius [-50%] 
    Persistent [+40%] 
    Ranged [+40%] 
    Based on Activation Roll [+5%] 
        Applies to establishing control, not attack roll 
    Pressure Reduction at Full Strength Only [-60%] 
    Reduced Duration (x1/60) [-35%] 
        Enough time to hit one area 
    Magical [-10%] 
    Spell Components [-10%] 
        Must say "vacuum" in Latin 
Level 2 [120] 
    Add Extended Duration (x3) [+20%] 
        Applies to Persistent 
Levels 3-7 [160/200/240/300/340] 
    Increase Extended Duration by 1 step [+20%]