Air Duster, Air Blower & Vacuum 2-in-1, Mini Cordless Vacuum Cleaner for Computer, Keyboard, Cameras, Fans, Cars, Powerful 60000 RPM, Replaces Compressed Air Cans

Q: I'm reading and seeing different things.... Is it absolutely necessary to remove the blue canister when using the blower?

I don't think so. I have never done so and didn't realize it was "necessary" at all. The blower works great, and I use it mostly. Perhaps the concern would be if there is debris in the blue canister, that it might fall out; I just keep it emptied :)

Q: Does this vacuum blow air to take off tree leafs on my car?

Yes! it can clean the tree leaves on your car. Best regards, Nice day,

Q: How do you know when it is fully charged?

Dear customer, Thanks for the question, when charging starts, the light will turn on; when fully charged, the light will turn off. Best regards, VEARMOAD Customer Service Team