Plasma cutter advice

Im still playing around with my Arcdroid and getting used to it, I decided to buy a very cheap plasma cutter to get going while I decide what long term plasma cutter I’m going to go for. The plasma was super cheap and advertised as a Non-HF unit. I’ve pulled the torch apart and it looks like a blow back torch, can some confirm this for me.

What brand and model

Remember I did say very cheap, its a chinesium AIXZ Global AIC45II

You should be able to use this I read through the manual and it states non hi frequency but if you start getting interferes stop using it