I tend to avoid brass. Brass contains lead.
Brass in contact with juice or in the area of the coil, maybe the drip tip.... You might have an argument, Beyond that, is paranoia. If not that much
Fact is you could suck on a chuck of brass from the day your born to no ill affect. OK, it might be bad on the teeth..... but geeeze.
If I want the authentic I buy it........ If I not sure and there are clones i'll buy those....... If the clone is good and like a 10th the price of the authentic...... I'm sorry but someone needs to look at their costs. because as of yet I do not know the meaning of disposable income.
BY the way My first mech and favorite mech is a $13 fastect Origin Mech clone in brass. Had it almost 4 years. It gets used almost daily. It has been dropped in pools, ponds, and rivers, doen a 50 foot cliff and off the roof. It has flown from the front seat to the tailgate and back of my XJ more than few times. Besides a couple scratches, it works as good as it did the day I got it. FWI the outside of it has not been "cleaned" since I got it. It has been washed. Internally it is kept spotless and shinny. Outside it looks like scrap pipe.
I have yet to get a BAD clone vape device....... Not that I a have tried or have all the original version of the stuff I have. Or even have ever seen the originals. Hell I bought most of my first Kayfun before I even new they were clones... Or that there was a such thing as a clone. I have and use 4 of them. I paid I think $10 for the most expensive one.
I have a Reo Grand Clone.. IF I was in the market for another mechnical squonker I would get an Authentic. Thing is I love my mechs. But regulated is soooooooooo easy.
And I have yet to be convinced I should pay more than $50 for a mod and $20 for an Atty.