It would certainly not be a good idea to breathe in air that was polluted with all sorts of things like dust particles, smoke and other things that are constantly moving around, even invisible to the naked eye. An air purifier is there quite essential in your home. It is necessary to have one so that you are able to breathe in good pure air, without bothering about the danger of any kind of virus or bacteria affecting you. You and your children and of course your guests need to have an airpurifier to ensure good clean air.