THIS ITEM IS NO LONGER AVAILABLE.
DISCONTINUED BY MANUFACTURER.
Link for replacement items
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remain available for informational purposes only.
Powder Puff Silica Smoke Test .007µ Particle Size
Powder-Puffer contains very fine Silica powder, particle size 0.007 microns with an enormous external surface area of 350 m2/g. When the bottle is squeezed this powder is released in the air forming powder smoke. The Powder-Puffer is used for checking draft in fume hoods, visual air balancing, testing of air purifying equipment etc.