I was contacted by an industrial painter that renovates old factory buildings for alternate uses. The first step is to remove decades of factory pollution from ceilings, pipes, etc. He was looking to blow down with compressed air but wanted a more effective way than just a long open pipe. It is noisy and was cited for not being OSHA compliant.
I suggested the EXAIR Heavy Duty Safety Air Gun Model 1360-72. This has a forceful but efficient Super Air Nozzle attached to it with a 6 foot long extension.
The design feature of the Super Air Nozzle is to draw in surrounding air and add it to the air stream thus providing more volume of air for blow off.
The customer was excited about the performance and how much quieter it was. He could clean faster and eliminate the need for hearing protection while complying with the OSHA dead end pressure directive.