We all use our tarpaulins/dust sheets to protect the customers flooring while oven cleaning. I went to a house yesterday and the laminate floor in the hall and kitchen was covered in powder. I asked the landlord of the property what it was and was told flea powder which had been put down by the carpet cleaners the day before. This is a situation where your your tarpauline sheet is protecting you and your kit. I tried to explained to him the dangers this could cause if I got unsavoury chemicals on my kit, but in one ear and out the other. DUH. Had to wipe the underside of the tarp with damp kitchen roll after to get all the residue off.