Natural and 100% biodegradable liquid. It is easy to use, requiring only soft microfibre cloths. It allows all washable surfaces to be cleaned without water using just one pass and no rinsing. The liquid is sprayed onto the parts to be cleaned (bodywork, metal, plastic, rubber, glass) before wiping with a slightly moistened microfibre cloth. Cleaning PV panels requires a simple specific tool: a pressure pump and telescopic shaft with a frame to hold a rectangular microfibre cloth. Use of this product allows cleaning even where there is no water supply, and without wetting either the surface requiring cleaning (e.g. solar panels) or the support surface (e.g. the roof). Thanks to this system and its low pH (2.45 compared to pH 4.00 of reverseosmosis purified water, which must then be piped to the installation), the solution is ideal for cleaning solar panels, and can help improve their output. The systems allows you to save large quantities of water, respecting the bodywork and the materials cleaned.