It comes with small instruction, I would definitely recommend to read it before you use this product. I clean my neighbors house, they have a lot of antiques to dust and I was so overwhelmed on the first day of cleaning. I thought this air duster would be helpful to save my time. I didn’t read instruction before I use it, I just charged and took it with me. I knew I had to hold the button for 3 seconds to start using (I saw a review here someone mentioned about it) but I didn’t know there was “standby mode” so I thought it broke and stopped working and I was very upset. I went home, read instruction and found out that I wasn’t using right. [How to use] 1. Press the button for 3 seconds to turn on the duster. -first gear 2. Press the button 2nd time. -second gear 3. Press the button 3rd time. -third gear 4. Press the button 4th time. -STANDBY MODE” 5. Press the button 5th time. -go back to first gear [How to turn it off] ・Long press any time when it’s in use. ・It will automatically turn off after 1 minute if you don’t use it when it’s on standby mode. [Note] ・You will see a green light by charging port when it’s on. ・It takes 3.5-4.5 hours for charging. Red light flashes when it’s charging and stops flashing when it’s fully charged. **I’m not sure about this, mine stopped flashing less than 1 hour after plugging. I charged for 4.5 hours, red light was still on. I would use brush 90% of dusting and small nozzle/long nozzle 10%. I tried to use the inflator tip to inflate a small balloon and it didn’t work at all. The brush only works on fluffy dust, if dust is hard and too caked, it doesn’t work. This tool is good for weekly or monthly dusting to make cleaning easier. Read more

If you can handle a little noise, then this will work for you. This will save money on canisters of compressed air. Read more

I find myself using this little device quite often. Originally purchased because air spray cans seem to empty too quickly and then go in the trash... not good for Mother Earth. I think the brisk blast of air from a can may be more powerful at first, but the continual strong blow from this device gets the job done. I use it for cleaning fans, baskets, screens, getting lint out of the corners of my handbags, and drying my sunglasses, et al. I keep it handy and charged. So far the battery has stayed strong for all these uses. The included nozzle options are helpful as well. I would buy again! Read more

If you have a pet inside, you need to get this thing! It blows out all the dog hair from all the corners areas your vacuum can't get to. It's a ton of help for cleaning! Read more

Amesedak works great for me, blowing the night bugs from my bug zapper. An air can works, but only last a few times, plus with the air cans price going to over $15.00 a couple of cans cost pays for my Amesedak air duster. I am pleased with Amesedak! You USB charge it, unplug, go to where you want to use, hold the power button it starts, touch power button again, more power ful air, press again more power, when done press power button stops. I definitely recommend! Read more