Refuge Shelter Door, as an essential component of the refuge shelter, boasts flexible, quick, and reliable opening, dual-sealed water and air tightness, high strength, easy installation, and other notable advantages. It effectively prevents both tangible and intangible losses, can withstand shock waves up to 1.0 MPa, effectively isolate toxic and harmful gases, and is equipped with emergency doors and observation windows. Its service life can reach over 10 years.