First we want to declare that we are the original to developed the use humidifier in cap shape, we have patent rights for its design , and they all pass CE and Rohs. 1)Doulex usb mini humidifier with patent rights for design,specia for air purifier in dry air room, for who always facce to the computer all day, it is look like a coffee cup, but it is bring fresh air for you in life 2)accept OEM logo print 3) CE&RoHs 4) spec Model No. : PC-JSQUnit size : 87*87*116mm Material : ABS Power: DC 5V 120mA packing size : 95*95*130mm Qty. Per carton : 60pcsCarton meas. :52*42*42cmG. W. : 0.20/pcs N. W. : 0.15/pcs5)Extensions functionUsing the ratio of 1:20 in the water to join Banlangen herb granules, houttuynia injection or disinfectant can be effective in the preventing influenza. Adding a few drops of vinegar into the water, can function as sterilization, adding salt water to soothe sore throat and chronic pharyngitis Adding a few drops of toilet water, can drive away mosquitoes and mitigate nasal congestion for children. Put the humidifier next to computer, can remove static electricity and reduce harmful radiation Note:Do not add essential oils, for the essential oils may block the atomization chip that would cause damage to the humidifier.