For me, it always clinks in my brain 'untrustworthy' when I see pages like that.
Should be:
This allows you to simulate tobacco smoking
However, that is poor English structure in regards to the product.
The word 'you' wouldn't be used but of course, in marketing the word 'you' is probably in the correct place.
The word 'simulate' doesn't really cut the mustard any way you look at it.
I'd probably say:
You will save money and save your health....