MSA W-65 Self-Rescuer. Purpose. A self-rescuer is a device to be used in case of emergency for escape through atmosphere containing carbon monoxide All personnel in underground mines need to know how to use a self-rescuing device and to be aware of its limitations. Goals of the Course.
MSA W-65 Self-Rescuer
Basic substance contained in the self-rescuer is hopcalite
Hopcalite changes carbon monoxide, a poisonous gas, into carbon dioxide, a relatively harmless gas