Due to the huge population on board, it is an understood fact that accidents are bound to happen. No matter how many times you as the people to be careful about what they are doing, they will ignore the risks. Most of the times people celebrating their vacations inside their cabins have put them alight. Either being too drunk to know what they are doing or taking up irresponsible challenges, they most often get things heated up. Fire inside a cabin is a serious threat to the entire ship and all of the people onboard. What if it starts spreading or blows a huge gaping hole in the structure? Everything will sink and people will drown.
There’s no way the crew can keep an eye open for such happenings, especially not inside the cabins where you can’t disrupt the privacy of your passengers. The only thing people won’t mind observing their activities is the CO2 & marine CO2 systems which has no eyes but has a nose for trouble. The array of smoke and heat detectors can know when the temperature is getting out of hand. And the modern technology equipped systems are able to control where they spray the CO2. If there’s trouble inside just one cabin, the CO2 will be released in it only and others won’t even know of it.
It is the duty of the crew to keep a regular check on the backend. The cylinder should always be filled to their maximum and spare ones should be carried along. The ultrasonic liquid level indicator has now become a part of the ships sailing for long distances. The device allows the staff to regularly check the cylinders while the ship is miles away from land. If one cylinder runs out of gas, it is taken down and the spare one is mounted in its place. After all you can’t compromise on safety of the ship and the people on it.