Question about ASUS Graphics Amplifier ROG XG Mobile (GC33) RTX 4090

Is it possible to clean the XGM without opening it? Mine has started to throttle at higher room temperatures and with demanding games (thermal throttling), presumably because it is dusty. Is the ventilation duct separated well enough to allow compressed air to be blown through from the outside? I have a Jet Fan hand blower, but am still hesitating. Would this also work for laptops (Flow X13)?