Water Sandblasting
Water sandblasting as just what it sounds like. Traditionally air is used to propel sand to surface to clean any number of unwanted surface afflictions such as rust, paint or graffiti. Water sandblasting has the advantage of higher pressures, speed and no dust.
View A Water Sandblasting Example
The pictures below show a project Accolades did in water sandblasting and repainting an exterior fire escape.