Flame-resistant clothes, while incredibly important pieces of PPE, are not fireproof. In extreme settings, the clothing will catch fire, and although it won’t melt onto the wearer’s body and will burn for a minimal amount of time, it can still cause serious injuries.

The best way to ensure that FR clothing is as safe as possible is to select garments rated to the correct standard. The minimum arc rating for HRC1 is 4, HRC2 is 8, HRC3 is 25, and HRC4 is 40. Layering FR clothing is an effective way of protecting the wearer from potential hazards. If the top layer is burned or damaged, the subsequent layers will help to stop the heat and flames from burning the skin and causing serious injuries.

As flame-resistant clothes are not fireproof, it is essential for professionals to avoid wearing synthetic garments under their FR clothing. Underwear, T-shirts, and other items made from flammable synthetic materials can cause a real hazard and can melt onto the skin, causing serious injury. Melting is possible even if the outer layer of clothing doesn’t catch fire. This is why it’s so important for professionals to wear appropriate clothing from head to toe.

Flame-resistant clothing also won’t protect against explosive forces, projectiles, and other hazards professionals may encounter while at work. If entering a situation where other hazards are expected, professionals need to ensure they’re wearing the correct PPE for the situation. Some of this PPE may also be flame resistant, increasing the protective qualities of the outfit.