Warning to amateur Opticians and -Feinmechaniker

The bellows is made of low-grade plastic material, presumably PVC with a very high proportion of plasticizer. That you can smell even if what you do is very close to the nose. But please do not too long, because some substances with hormones related effects (phthalates problem). The bellows is after some time brittle and fragile as soon as the plasticiser have dissipated - or have settled to optics, sensor and slides or have migrated through the skin into your blood: - (((.

From which the brush hairs are made, can not be determined exactly. What is certain is that with age inappropriate bristles extremely increases the risk of scratches on optical lenses and other objects. The main problem is though, that you immediately pumped out from the bellows materials distributed with this brush attached to the nozzle on your optics and precision mechanics, rub and smudge. You must remember that, overblown by this bellows air is drawn directly from your working environment always yes. Without a slightest filtering. What thereabouts hovers at Mote and stewing, yet perhaps in a smoking or pet household, probably needs no further explanation. The materials from the bellows material, you can even smell yes, would be additional. Since there are actually reviews, in which even the blowing of the camera is propagated on the beach - with salt particles saturated air !!! OMG: - (((

The brush leaves clearly visible traces on so touched objects, especially optical lenses, films, Diagläsern. Without special treatment you get away not leaving any residue. For stubborn stains such distilled water has been proven to glass surfaces, which is applied very carefully with a cotton swab and wiped out from the center toward the edge. No circular motion, sticks change repeatedly.
Do not use special magic bullet with undefined additives that leave residues exception.

My Recommendation:
For me it goes without saying that such a brush must be made of fine natural hair, preferably Marder (search keyword "water color brush"). And for blowing there purified air from the can (search keywords "compressed air" or "compressed air"). With 5-6 Euro may not be quite as economical as this poison-blower, but absolutely clean and therefore indispensable for any precision mechanics or optician.
Brushes and compressed air can also be found in any well-stocked hardware store. Minus the saved postage costs you can blow very professionally and with the highest quality then for the same money.

Addendum:
Another hot tip: get yourself the marten brush (or beser equal a set) and to a pressure sprayer made of PE (polyethylene unsuspecting) for a few euros at the hardware store or from the bargain bin at A ... or L ... who are familiar with hose preferable , This clean fresh air and inflate. This concerns possibly pollen etc.! I have tried it myself, that works with not too large workpieces fine and saves you the hassle of pumping while working!