Avoid Planar Effects

Until the spell ends, a willing creature you touch is protected against a plane's natural harmful and disruptive effects. Anything the creature is wearing or carrying is also protected. This spell protects against conditions such as toxic fumes, lack of air and temperature extremes. This spell does not protect the creature from other creatures that may be native to the plane, nor from intentionally created traps or spells.  

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, you can target one additional creature for each slot level above 1st.