Oil and grease can migrate through carpet and upholstery, so rubbing or flooding the area often spreads the contamination.

AVP identifies the substance and material, lifts excess residue and uses compatible degreasing and extraction in measured stages.

Colour change or damage may remain where the substance has altered fibres, foam or coating. Those limits are assessed after drying.

Residual odour is treated only after the physical contamination has been removed as far as safely possible.