To ensure the safety of the user, we think this kind of protection gloves and  clothing would be the best. There are many kinds of gloves and cloth.

Person who does the welding work needs to wear the protection cloth to aware the torn off of the cloth he/she is wearing during working. It also protects the skin from the ray.

There is also a protection for the arms of the worker which made from asbestos or leather. It protects the skin from heat that might be short circuit.

Look for the suitable one for the kind of work you do.