What's the function of the two lids in the toilet?
The second lids have the effect you said, but mainly for cleaning, and you can use the cushion, so you don't have to use the cold fart in winter.
The top one, after the toilet is used, covers and flush the water so as not to get anywhere. It also acts as an air separation.
The two is to press the lid up with the men's urine, the cover down to men in the toilet stool, with ms..
