Dust-Off non-flammable dusters provide the same potent dust-removing power as our standard dusters, but are specially formulated for special applications where flammability is a concern. These dusters are ideal for chemical laboratories and other areas where electric current or sparks exist. Each duster includes an extension straw to get into hard-to-reach places. Contains a bitterant to help discourage inhalant abuse. Capacity Volume: 3.5 oz; Packing Type: Can; Refillable Yes/No: No.