Keep your workspace fresh and clean with this powerful air dusters which blast out dirt, dust and debris from the most inaccessible of places. To be used in an upright position only. Combined with the optional extension tube it is possible to reach almost everywhere. Ideal to use on workplace essentials such as keyboards, printers and other electrical equipment. 350 ml in an ozone friendly (HFC free) can. Flammable. 520 ml can.