I'm a bit unsure how I stand on the topic of EM pumps and Static pumps. I'm willing to try one, but from a pure scientific point of view there are so many devices already in your average home or office that act as EM pumps and even Static pumps that I seriously doubt it will make much difference. Now perhaps outdoors, or in an old castle or abandoned property it may.
But just to list a few sources of EM pump or Static pump:
Any Motor - strong EM pump
Cell Phone - strong EM pump
Non-flatscreen TV - strong EM pumpg/strong Static pump
Florescent Light - static pump
Wool/Glass - static pump
Walkie Talkie - EM pump
Power Lines - EM pump
Extension Chord - EM pumpg
That's just a few, and there are many more.