[Plankton]

Internal clean. 10 years worth of pigeons muck in an old unit floor is 300 sqm air quality is bad although there is a barn door for access. Respiratory is definitely required and will need to kill off all known diseases.
Price thoughts?

[Matt.]

Dirty job mate, face mask goggles ear plugs and a paper suit comes to mind,

I think double what your hourly rate is for pressure washing mine is £40 ph, so £80 ph makes any job worth doing......... But don't tell custard that just explained you need to spend more in chemicals to make it safe

[BDCS]

Its called guano, hourbours 60 known diseses and parasites harmful to man. The real issue is the dust so on outside jobs I put the product in the pressure washer tank and thoroughly wet it down. Once adequately sanitised it can go in a normal skip ( usually as a mixed load with all my other junk ).

http://www.pestfix.co.uk/px-ornikill-avian-disinfectant.asp

I get mine direct from Killgerm but I have an account and hence discounted