Cloud Ten Storm is a smokable spice/herbal incense/potpourri. It depends what the drug test is set up to find: Some "typical" drug tests don't test for as wide a variety of drugs as others. If you expect to be subject to a drug test or are expecting to be operating machinery (i.e. Driving) etc, it is always best to avoid any substances that produce effects that can impair your judgement. A general rule of thumb, is that most drugs - "herbal" or otherwise - tend to stay in most people's (weight, age, and metabolism figure in) systems for about 2 -3 days or more.