I have a collection of die-cast metal classic cars ranging from 5 to 10 inches in length. I can wipe dust off of some of the metal surfaces with a cloth but some areas like the engine compartment are hard to get at. The duster works very well in cleaning those areas. I gave it 4 stars because sometimes the nozzle is blown out. But I will continue to buy it.
I found the cost for one bottle of air duster remover was expensive. My keyboard needed the air remover urgently so I took the hit. The staples I went to did not have any other brands to buy as an alternative. Before I used the bottle you need to remove a piece on the top to be able to use. I found that the piece was not user friendly to remove. For someone that does not use this product regularly I can see how bit can be intimidating that they might break the top of the bottle instead. Regardless the product does the job that it is meant to do.
I learned from my Staples store technician that the stripes across my printed page were the results of collected dust. The spray he recommended (above) solved the problem instantly!