from a neat freak

[Andrew and Rebeca Anderson]

I've followed an alternate method of puffing compressed air into the 
piano with a shop vac. with a HEPA filter drawing the dusty air off 
on the other side.  That would be a little hose in one hand and a big 
hose in the other.  In theory you could get a second hose for your 
shop vac and blow through one while vacuuming with the other.  I like 
being able to control, on/off, the compressed air.  This is useful in 
pin fields and especially under the dampers where a rag can't do much 
but re-arrange the dust.  With newer soundboards and low humidity you 
can get clean this way without sticking a soundboard steel in there 
and trying to avoid scratches.

Andrew