
electric air duster CTB02


Efficore Compressed Air Duster
How does the Electric Air Duster CTB02 achieve a full charge in just 1 hour?
With a 45W USB-C PD charger, the battery reaches full charge in 45–55 minutes.
Note: Charging time depends on the charger. For best results, use a USB-C charger rated at 45W. Standard 5W or 10W chargers will take significantly longer.
Why does the Electric Air Duster CTB02 battery percentage drop so fast on the highest speed?
Battery % is voltage-based. Under high load, voltage drops instantly as a natural physical reaction, causing the % to drop fast at first. But the actual battery power is still there—total runtime stays the same. This is normal, nothing to worry about
How to Power on/off the Electric Air Duster?
Press and hold the power button for 2 seconds to turn the air duster on or off. The air duster starts at level 1 when powered on.
Note: Do not use the device while charging.
How to Shift the Speeds?
After turning on, press the power button repeatedly to cycle through the speed levels.
Intelligent Protection Function
The electric air duster will automatically power off after 3 minutes of inactivity in standby mode.
electric air duster CTB02


Efficore Compressed Air Duster
![]() CTB02 SilverGray | ![]() CTB01 Black | ![]() CTB02 Black | ![]() CTB02 White |
|---|---|---|---|
| Price | |||
| — | — | — | — |
| Brushless motor | |||
| ? | ? | ? | ? |
| Peak Power | |||
| 185W | 70W | 1850W | 185W |
| Motor Max RPM | |||
| 180000 RPM | 110000 RPM | 180000 RPM | 180000 RPM |
| Max Charge Rate | |||
| 45W | 15W | 45W | 45W |
| Battery Capacity | |||
| 4000mAH*2 | 2600mAH*2 | 4000mAH*2 | 4000mAH*2 |
| Charging Time | |||
| 1H | 2H | 1H | 1H |
| Number of Brushes | |||
| 4 | 4 | 4 | 4 |
| Number of Nozzles | |||
| 4 | 4 | 4 | 4 |
| Weight | |||
| 0.65lb | 0.5lb | 0.65lb | 0.65lb |
How does the Electric Air Duster CTB02 achieve a full charge in just 1 hour?
With a 45W USB-C PD charger, the battery reaches full charge in 45–55 minutes.
Note: Charging time depends on the charger. For best results, use a USB-C charger rated at 45W. Standard 5W or 10W chargers will take significantly longer.
Why does the Electric Air Duster CTB02 battery percentage drop so fast on the highest speed?
Battery % is voltage-based. Under high load, voltage drops instantly as a natural physical reaction, causing the % to drop fast at first. But the actual battery power is still there—total runtime stays the same. This is normal, nothing to worry about
How to Power on/off the Electric Air Duster?
Press and hold the power button for 2 seconds to turn the air duster on or off. The air duster starts at level 1 when powered on.
Note: Do not use the device while charging.
How to Shift the Speeds?
After turning on, press the power button repeatedly to cycle through the speed levels.
Intelligent Protection Function
The electric air duster will automatically power off after 3 minutes of inactivity in standby mode.








































