Just a squeeze or two from the plastic bottle dispenses a cloud of ultra-fine, lightweight silica powder, which remains suspended long enough to visually check whether or not the fume hood exhaust is functioning properly.
- Useful for detecting drafts, gas leaks and air currents in rooms, ducts and exhaust systems
- Amorphous silica powder is inert, non-toxic and non-flammable
- 1.5 gm bottle