1.Before use, please fully charge the vacuum cleaner to ensure sufficient suction power. 2.When charging, please turn off the portable vacuum cleaner. To preserve battery life, do not use while charging. 3.Before use, please install the filter and make sure the dust cup is locked. 4.When using, in order to ensure the strongest suction and cleaning effect, be sure to use the vacuum cleaner with the suction head accessories. 5.Do not use it to vacuum sharp objects such as hot ashes, cigarette butts, burning matches or broken glass. Do not inhale too much liquid(Allows inhalation of small amounts of wet waste). 6.Clean the filter in time to avoid affecting the dust removal efficiency 7.The filter can be removed and cleaned. It is recommended to clean the filter once a month and replace it every 3 months. For frequent use, you will need to clean and replace more frequently. Please air dry after washing. 8.To prevent liquid from seeping into the motor, do not turn the mini vacuum cleaner upside down or on its side after suctioning the wet garbage. Please empty the dust cup as soon as possible.