1. The new house special-wall new fan (removal of formaldehyde) 2. Wall type of lung cancer prevention new fans (dust bacteriostatic) 3. improved sleep pattern wall of new fans (speed through the fresh air) 4. In addition to the new wall-mounted fan to secondhand smoke (speed row Waste wind) 5. maternal health-wall new fan (no wind carries oxygen) 6. New student special-wall fan (enriched refreshing) 7. Family Shared Air Purifier (dust odor) 8. central air system ( a multi-purpose machine)