Hello,
Thank you for your email.
We have carefully sourced our parts from all over the world and have gone to great lengths to source and use only safe parts, from glass to silica free ceramics, there are no glues, pcb's are lead free, all accessories are medical/food grade etc...All structure materials used inside are of safe non-toxic materials and are temperature heat rated much higher then the heater can go at maximum temperature. Both the Extreme and V-Tower are assembled here in Canada with parts coming from USA, Germany, Japan, Korea, and Taiwan.
Regarding all the screen filters used, they are made of a Stainless Steel/Titanium Blend. They are not copper or brass screen filters, as this would defeat the purpose of only using safe parts.
If I can be of further assistance please let me know.
Best Regards
Debbie