[header] How to clean plastic plants [title] Use a can of compressed air to remove the bulk of the dust. [step] Compressed air (usually used to dust computer parts) is particularly effective for clearing dust off of curved surfaces and recesses. The high pressure blasts off dust relatively easily and the long nozzle allows you to reach around a plant's curves and nooks. 
[substeps] You may want to take the plant outside before dusting it this way, or the dust might linger in the air. [title] Use a blow dryer to rid your plant of dust.