2024 Coleman Lantern 17B Travel Trailer

New 2024 Coleman Lantern 17B. Has a Queen size bed, two bunk beds and a dinette table along with two seats that can be turned into another bed. When four or five people are sleeping in the RV it is recommendable to maintain one of windows slightly open for better ventilation. I was told that because apparently oxygen runs out when there is many people. I was told that an alarm will sound very loudly to notify, hope I explained myself. There is also a bathroom along with a shower, chimney, air conditioner, plates, forks, spoons, cups, utensils for kitchen, cleaning materials and towels just in case.