It is very important to keep our breath fresh as it is a part of personal hygiene. Listerine mouth wash is just a perfect product for the same.
It is a quick stuff to ash your mouth and kill bad bacteria in few seconds.that removes bad breath with feeling of freshness.they have good flavours in them all are good to use and has the same effect too. It is worth the price and has small bottle to carry for treks where you can afford to use water.
Even if it is that good doctor will still recommend to brush your teeth before going to bed.which make sense as liquid will not reach in every corner of mouth within 30 seconds.