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Dust Destroyer Duster, 7oz., 6/Pack $ 20 at Staples
http://www.staples.com/Dust-Destr…uct_329
[LIST][*]Dust Destroyer duster is ideal for computer monitors, keyboards and printers[*]7-ounce can[*]Six cans per package, so you have plenty in stock for everyday cleaning needs[*]Compressed liquefied gas removes dust and debris[*]Contains liquefied gas infused with bitterant to discourage inhaling