This is salt INFY is another brand of electronic cigarettes and E-cigarette liquids are interesting and there are many products that many people have never tried using. Today we will talk about them. INFY by This is Salt A pot head with a variety of scents for us to choose from. This is salt INFY has another interesting advantage: the INFY liquid head. This Pod can be used with Relx , so you can buy just one head and use it with 2 Pods.