A lot of power packed in a small device. This air duster can be a vacuum or blower. It can inflate or evacuate air, making it a 4 in 1 device. It is a charagable device that takes about 3 hours to charge, giving 2 hours for use. To convert between a vacuum and an air blower, parts need to be rearranged. The parts are durable, as is the base device. There are several attachments to provide different shapes for vacuuming and air blowing. The device is quieter than a regular vacuum. The noise level is low, compared to other similar devices. Overall, the device feels strong and durable. I have liked using the air blower to get dust out of computer equipment, even from inside a laptop case. The vacuum is just as safe to use on computer equipment. It also works well to get dust out of heat registers, air conditioners, and appliances. It is strong enough to get built up dust out of tight spots. It’s been a great tool for dusting. After using it for about a month, it has been reliable and it remains to be a strong source of air dusting. Amazing for dusting computers, much better than compressed air. It’s a good value.