Has anyone tried this or are there chemicals in the filter as well?
Neither cotton or wool melts into a glob like pictures I've seen of melted core material.Since the cartridge material is basically cotton wool why not just buy cotton wool for replacement purposes.
2 weeks ago I picked up some filters for the roll-your-own machine to try. Good draw, but I couldn't get decent vapor, even with a good soak in e-liquid. The cotton fibers must be too tightly packed or something? Hope that helps...
there is a thread here somewhere.somebody bought fish tank filters and said they are nearly indestinguishable from cart material.so far hes saying they work great, and got tons of it for like 5 bucks.find the thread, he even has a link to the product so you can find it easy.
Sorry I didn't mean that type of cotton wool, I was refering to the type as sold in a pharmacy. Interesting thought about roll-your-own filters, I've still got some slim filters so I might try that.