All bottles, excluding the powder filled ones, contain "Ecolife" AFFF, an aqueous film forming foam not harmful for the environment. This extinguishant is usable only with the special nebulizing nozzles supplied in the kit on:
- Class A materials (fabrics, rubbers);
- Class B materials (inflammable liquids).

The homologation is valid only if the kit is used complete, therefore do not install OMP bottles with different piping/nozzles and do not have these systems refilled with anything else the "Ecolife" AFFF.