Fent mindent leírtam róla, de nem tudom, hogy van-e valami rendes magyar neve.
Itt egy jó weblap ami sok kérdésre válaszol ezzel kapcsolatban.
www.mediablast.com/media-blast-faq.asp

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Note added at 1 hr 44 mins (2005-04-01 13:41:23 GMT)
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I am sorry, I was in a hurry, and just flicked over to the English page, then somebody rang, and I forgot, where I was. :-O

So, here you are: it is a static and dust eliminator, with foot pedal operation.
Here is a website for a hand-held one:
www.sar101.com/cpf/gunsline.htm
Here is a text explaining it:
Focused air ionizers are often used where the process demands small area or spot protection. They are either hand-held similar to an air nozzle or they may be mounted in a fixed location. The main advantage of this type is that the user has the benefit of a strong air blast (20 to 100 P.S.I.) to help dislodge contamination, while the ionization in the air stream eliminates the static attraction of the particles at the same time. Hand-held air nozzle types will usually have a trigger or pushbutton to activate the air and ion flow, while the stationary-mounted type is frequently remote controlled with a foot pedal, photo sensor, or some other switch closure.
The website for the above is this, quite short and to the point, you may be interested to look it up: www.esdsystems.com/whitepapers/wp_ionarticle.asp