This post is probably super old but I've been using water filtering for all my smoking tools and it makes a world of difference.
Have a look at some bubblers, they're essentially tiny portable bongs that you can attach to devices like this. I'll attach the one I have which I think is compatible with the dynavap:-
https://www.alibongo.co.uk/en/straight-bubbler-suitable-for-dynavap.html
Have a look at some bubblers, they're essentially tiny portable bongs that you can attach to devices like this. I'll attach the one I have which I think is compatible with the dynavap:-
https://www.alibongo.co.uk/en/straight-bubbler-suitable-for-dynavap.html

