... area 3.Zero residue,no harm AIR DUSTERUsed in delicate instruments and computer equipmentIdeal for cleaning computer keyboards, optical instrument, ... , cash machines, fax machines, photo equipment, VCRs, CDs and delicate lab equipmentHigh pressure dust removerAir duster is a high ... a powerful jet of dry inert gasPrevents errors, downtime and damage caused by microscopic dust in electronic devices, data ...