I use my magpulser more than the blood purifier as well. Works well for certain types of pain and getting the lymph fluid moving. I use my zappers quite a bit more and find them very effective for candida, viruses, and parasites. For convenience I like the Silverdo Zapper, strap it on and go about my business. When I need a deeper, faster, more concentrated zap I reach for the copper paddles and use my 15hz Hulda Clark zapper. The zappers feel a little more comfortable energetically to me than the BE device, less skin irritaion.