Dust collector system
Installation a dust collector system with air returned.
- Using PVC films for shield around baseboard machine area;
- Using the dust hood for collecting dust, and return the air by supply air diffuser which installed on the ceiling. 
- Add 2 air conditioner 24,000 Btu/h/pcs - ceiling type inside PVC film (Included in quotation).
(At present we are using air conditioner 160,000 Btu/h/pcs)