When you are out and away from your home toilet, you want to ensure that you are protected from germs in a public toilet. For this, you need to sanitize the toilet seat with a germ-killing spray like Sitsef.
Similarly you want to ensure that any unwanted odours are eliminated quickly and effectively with a toilet deodorizer. Just one or two drops of a deodorizer such as One-Drop into the toilet bowl will neutralize any embarassing odours and provide a fresh fragrance.