Anti-fire shield

Anti-fire Shield
Anti-fire shields are low defence level shields that are used when killing dragons. They provide protection against the dragonfire flames that the dragons attack with. These flames otherwise would hit the player for 50+ damage, thus making it necessary to use when fighting any dragon. It doesn't completely negate all damage though, however It can be used in conjunction with an antifire potion to completely remove any damage risk from a dragon's fire attack. They are not difficult to obtain as you receive one for free during the quest Dragon Slayer. Anti-fire shields can also be smithed into a Dragonfire Shield with a Draconic Visage and level 90 Smithing, or by paying Oziach to smith it for you, this drastically improves the stats of the shield.

Where to Obtain One
You can receive an Anti-fire Shield from the Duke of Lumbridge during the quest Dragon Slayer, or from buying one from another player.