Powder Puff Silica Smoke Test .007µ Particle Size (S201) in Disposable Plastic Bottle

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.