Bought the following
Electric Air Duster.
No MORE COMPRESSED AIR to purchase. YEA!!!
DOROBEEN Compressed Air Duster, Rechargerable Electric Air Duster, Canned Air Duster for Computers, Brushless DC Motor, 8000mAh Battery Portable Cordless Compressed Air for Keyboard Cleaning
https://www.amazon.com/gp/product/B0...rod_image&th=1
Received this last week. It has several attachments though the best one for audio is the one with the brush. Have several pieces of audio equipment that are hard to dust due to location in a cabinet or under shelves. This duster has a lot of power. Like can blow things over. Though it can be used for so many other items like cleaning fans, cleaning PC's, cleaning auto's, cleaning the house in hard to get to areas. It is USB charged though you can buy an AC adapter for it. It cost $59.00. Highly recommend.