Even when using a spray booth, spray room or capture unit, sprayers still need to wear airfed RPE and PPE, and bystanders should be excluded when using isocyanatebased products. The duty is to control exposure to isocyanates to as low as is reasonably practicable. The need for health surveillance still applies. Once spraying has finished, the sprayer should leave the spray booth, room or area wearing the RPE. For isocyanates, reentry before the clearance time (booth or room) or before 30 minutes (workshop) have elapsed requires airfed RPE. This always applies. Mist capture and filtration equipment requires annual thorough maintenance, examination and test. .
