Breathing Respirator,Security 1. HL-BA1M 6.0L 2. 300Bar /4500psi 3. ... Shanghai Haolin Industrial Co., Ltd. Respirator With Steel Cylinder,Chemical respirator,Security with 100% Silicone mask Item standard1. 300Bar / 4500psi2. with EN136, EN1373. CE, approved 1 ... (Shanghai) Co., Ltd. They are used widely for fire fighting, chemical industry, shipping, warehouse, laboratory, mine, and can be worn by ...