In article ,
John wrote:

We need to clean air ducts in a building where part of the air duct have been
insulated (from the outside) with blue-asbestos. Removing the asbestos would
involve huge costs and we have a time limit. I am asking is there anyt other
way
to clean the air ducts. It probably costs a lot too but at least we don't
have to
redo the ceiling. The air ducts are 1.5 ft x 1.5 ft rectange shaped and made
of
metal sheet.

Child labor comes to mind. Any six year old could slither around in
there, unless he's on the McDiet.