Samsung LH015I SERIES Installation Manual page 13

2. How to install
2-1 How to Handle (Cleaning metal dust)
1. If LED display area is under construction, you should cover the LED surface with
protection sheet to prevent dust (metal dust) stick to LED surface.
LED surface must be cover if display area is under construction
2. Clean dust on the LED surface with Cleaner machine (must use a soft brush head)
Soft brush
Samsung Electronics LED Display Installation