Now you don't need to worry for other complex test to detect the type of disease you have.
The basic principles of this sensor device that can detect different kind of disease in a person's body by their exhale(from the nose;breathing out) is based on what we call VOCs(Volatile organic compounds) you know when you breath,you breath out some chemical compounds and some elements like nitrogen and carbon dioxide but it is not only those that are coming out,the fact is that there are a lot of volatile chemical components that come out along with the elements you exhale..read more at http://kayscience..com.ng/2016/12/scientists-can-now-identify-17-types-of.html?m=1