Such amount of gas cans (not deodorant, real gas like butan) isn't even remotely enough to fill room this size. You need like 50 times more of them and room must be tightly sealed. Even then explosion isn't guaranteed to happen. With deodorant (honestly with other gases as well) victims will die from suffocation long before possible explosion.
Jumping through window especially wearing such light uniform will most likely kill the person on the spot or inflicts injuries that render them incapacitated on the verge of death.
Not like anything else is realistic in this manga though