Portable Mesh Nebulizer Machine – Two atomization modes, mask atomization and mouthpiece atomization, depending on the situation – Finely atomized particles can reach 1 – 5 micrometer, more complete drug absorption, less drug residue – The sound is small, close to 0 decibels, letting you enjoy the atomization quietly – Dual power supply system to meet your needs anytime, anywhere – Handheld nebulizer, small body, small and portable, used at home, on business, or travel Portable Mesh Nebulizer Machine Specifications: Name: mesh nebulizer Model: JSL-W303 Power: DC 3V Power type: USB cable 2 x AA battery (not included) Cleaning instructions: 1. Do not use straight water to clean the cup. 2. The cup is removed and cleaned separately and the main unit cannot be cleaned. Weight 0.25 kg