PEMF Field polarity
Claiming that PEMF pulsed electromagnetic fields have a positive or negative field is nonsense. This is also the case for claiming that there is a North or South pole electromagnetic field for PEMF because the pulsed fields do change polarity continuously.
If moving a compass from the outside towards the inside of the PEMF coil and moving it again towards the other side of a PEMF coil you will notice that the field changes directions, from North to South and back from South to North etc.
As such it is only logical that there is no need for use of a specific side of the PEMF coil applicator because the identical field extends at both sides of the PEMF coil.
Only static magnets have a North and South pole.
In a compass the ‘South’ pole of the arrow points to the globe’s north but funny enough is called the ‘North’ pole!