Obscuration cloud generator

An obscuration cloud generation device, comprising:

• a housing having a door and a frame sized and shaped to accommodate an obscuration cloud generating canister when the door is in a closed state, wherein activation of the obscuration cloud generating canister emits a composition for forming the cloud and the door has an operably open state in which the door is open to at least a predefined minimum extent for exiting of the emitted composition from the housing;
• a door checking system that applies a force for opening the door and generates an indication of whether the door is open at least to the predefined minimum extent;
• and
• a controller adapted to:
• instruct the door checking system to apply the force for opening the door;
• and
• receive the indication of whether the door is open at least to the predefined minimum extent to determine, before activating the obscuration cloud generating canister, that the door is not blocked from reaching the operably open state.