VAC21 FAQ

1. It may be caused by insufficient power of the device. Please confirm the power of the device and charge it.
2. If the battery is damaged, please contact the customer for replacement.

1. Check whether the power supply is connected to an adapter or car charger with a rated voltage of 5V and a rated current of not less than 2A for charging.
2. The product will overheat internally after long-term use. Please cool it down for a while before charging.

1. It may be caused by the dust cup not being connected correctly. Please confirm whether the device is installed correctly.
2. The dust cup is full, empty the dust cup.
3. The device is low in power and needs to be charged.
4. The filter is clogged, please clean the filter in time.

1. The HEPA filter is not installed correctly. Please reinstall it to ensure that it is installed in place.
2. The HEPA filter is damaged and needs to be replaced.
3. The dust bin is not installed correctly. Please reinstall the dust bin to ensure that it is fully fastened.

1. Please use a 9V-1.5A maximum power adapter (not included) and a Type-C charging cable (included) for charging. The Type-C charging cable can only be used for charging.
2. It takes about 3.5 hours to fully charge (9V-1.5A).
3. After fully charged, you can use it for about 20 minutes in MAX Mode mode or about 70 minutes in Normal Mode mode.
4. It is recommended to fully charge before first use and after longterm storage.
5. It is recommended to charge the device once every three months to improve battery life.