Fireward

This spell temporarily renders a spherical area fireproof, instantly extinguishing all fires and preventing the ignition of future conflagrations for the spell's duration. Despite its name, this magic does not ward away flames, but I rather drinks them in, destroying them. The sphere is centered on the caster but is stationary once created. The caster can move about, engage in other spellcasting activities, slumber, or even leave and reenter the sphere repeatedly without affecting it in any way.

Fireward is effective against red dragon breath, fire elementals (who cannot enter or be summoned into the sphere), natural fires of all sizes (including forest fires), and fiery magic. It prevents heat and vapor transfer between its protected area and the surroundings so that smoke cannot enter a fireward, a conflagration cannot roast its occupants, nor can a fire suck all the oxygen out of the ward to feed its own roaring flames.

The material components of this spell are a pinch of sand and a drop of water.