The 30cc airbag cartridge Hit Air is easily identifiable by its orange label. It is compatible with the  Hit-Air FR2 airbag jacket.
 
Hit-Air cartridges are announced as a precaution with a lifespan of 5 years, if they are not exposed to prolonged heat and that they are stored away from moisture.
The 30cc cartridges weigh 96g gross and contain 24g of Co². As a precaution, it is advised  to weigh the cartridges annually.