Mechanic Windflow Powerful Microscope Fume Smoking Instrument1. Four speed wind regulation, 10000 min rotational speed, effectively clean solder fume 2. Continuous inhalation rapid vent, one key variable speed design, full protective net, protect health 3. The current output of strong wind, compact, smart, space uncast, portable, compact, efficient 4. With microscope for repair, prevent internal lens pollution, prolong product life 5. One key variable speed design Specification: Package Weight One Package