This kind of fire retardant is fireproof
Fire is required to reach the fire area directly. Use a fire escape suit, larger, fully enclosed, and equipped with an air breathing apparatus or an oxygen respirator.
Note that the fire fighting suit is only used in the fire environment, not that it can be in direct contact with fire for a long time.
This is the emergency rescue clothing (relatively thin, no liner), our active fire brigade emergency rescue clothing is orange.The fire fighting equipment of our active fire forces is black, and there is an inner liner for fire insulation.