What to put in the toilet will smell

It's called air freshener and can be bought in supermarkets. O(∩_O~ >>>More

Generally, it contains camphor or musk, which is not good for pregnant women and babies.

It's called deodorant, that thing has a very good fragrance, you can smell it at least five meters away, and it is sold in supermarkets, and we sell it for three or four yuan.

No, there are aqua toilets on the train.

You should put some green plants that purify the air, produce oxygen, and can grow in the shade, and it is best not to put flowers with a strong aroma, which will make the smell more mixed and unpleasant. >>>More