The DC1100 Air Quality Monitor provides you with the necessary information for you to assess whether or not your indoor air is clean. It helps you stay proactive in the health of your family and if used in conjunction with the tips provided, you will be able to make sure that you are doing all that you can to keep the air your family breathes clean. All you need to do is simply plug it in and turn it on. The DC1100 will configure itself to continuously count the airborne particles in your home. The DC1100 will let you know if the steps you are taking to improve your air quality are really working or not.