"Do these devices produce a harmful 'EMF' (electro-magnetic field)? The Blood Purifier doesn't produce any EMF. The Magnetic Pulser produces some but only for a fraction of a second every 7 seconds when it pulses. EMF that is harmful is strong and continuous (such as what you get when living under a high voltage line)."
I have a EMF meter, and it verified the above. It has 3 lights on it
Green = Safe
Yellow = Caution
Red = Danger
I have a Sota Magnetic Pulsar which goes through a sequence of 4 green lights, then it fires a magnetic pulse on a red light. This repeats for 20 minutes. The EMF meter registered Safe until it fired on the red light, then it changed to red (danger) for the second that it fired.