DOFF brick cleaning as seen on Google Maps
It’s official, you can find us on google maps! This link takes you directly to a close up view of the DOFF test panel carried out for masonry cleaning feasability on a wall at St. Pancras Station. The test panel confirmed that the DOFF was indeed the best machine for the job.  It’s low pressure steam (50 bar/150 degrees C) is incredibly effective on friable brick like the ones at St. Pancras Station.  The test panel was approved by English Heritage.  See our other article about efflorescence.