AIA’s integrated ceiling is better. Although Opp’s bathroom heater is good, this Opp’s suspended ceiling is no longer the same as Opp’s bathroom heater, so it’s hard to judge the quality. AIA bathroom now also has a dry and wet zone air heating system. The dry area uses air heating and the wet area uses light waves. Bathing and heating will be much more comfortable, and it is also a popular bathroom heating mode now.