AF Superduster Air Duster 300ml SPD300 This high powered sprayduster is the highest strength spray duster available from AF. It is non-flammable and odourless perfect for the removal of dust and debris from inaccessible areas. We recommend to use in short blast for best results although the actuator allows for the strength of the blast to be controlled. Containing an extension tube this works exceptionally well on keyboards, printers and computers ensuring you can access the most difficult to reach areas. Fully compliant with changing F-gas regulations as of 1/1/18