All extinguisher systems (with the exception of aerosols) are self-maintainable and can be refilled in the field by the end user via a Schrader valve and compressed air for pressurization. The premixed refill agent does not require dilution and has a 25-year shelf life. Designed for tire and fuel fires, the agent can withstand temperatures down to -20F (-28C) and creates a thermal heat barrier on objects when temporarily subjected to flames. It has a non-toxic HMIS level of 1-0-0-0.