The W302 is a portable mesh nebulizer designed to help adults and children manage conditions like asthma, rhinitis, and coughs. Using ultrasonic mesh technology, it converts medication into a fine mist with a particle size of 5 microns, ensuring the treatment reaches deep into the respiratory system at a vaporization rate of 0.2 ml/min. Constructed from white ABS plastic, this compact device weighs 183 g and measures 130 x 90 x 80 mm, making it easy to carry in a bag for use on the go. It operates very quietly at 20.5 dB, which is particularly helpful when treating children who might be frightened by louder machines. The device is powered by a 3V battery and features a 0.8 ml medication cup, providing up to 30 minutes of continuous operation. To help conserve power and ensure safety, it includes an auto-off function that shuts the device down automatically.