Low-cost flame-retardant garment capable of humidifying breaths

The invention relates to a low-cost flame-retardant garment capable of humidifying breaths. The low-cost flame-retardant garment comprises a garment body (1). A mask (2) is arranged on a collar of the garment body (1). An ultrasonic humidifier (3) is arranged on the back part. An air storage box (4) is arranged on the front part. The mask, the ultrasonic humidifier and the air storage box are all connected through guide pipes. The garment body is made from a fabric. The fabric is formed by interweaving composite flame-retardant yarn which is formed by blending aramid fiber and flame-retardant viscose and wrapping the mixture on the outer surfaces of glass fiber core yarn. When the low-cost flame-retardant garment enters high-standard environment workplaces, the ultrasonic humidifier starts working to convey moisture into the air storage box, air passes through the air storage box to carry moisture when people breathe, and therefore moisture can be sufficiently supplemented for workers. The low-cost flame-reta