Compact and easy to carry, this portable mesh nebulizer offers three-speed adjustment. - Model: Sweluxe Portable Mesh Nebulizer - Features: Three-speed adjustment (0.2ml/min or more) - Mist Size: Average size 3.7μm - Design: Compact and easy to carry - Noise Level: Low noise (less than 45dB) - Power: USB powered (using a 5V USB adapter) - Automatic Cleaning Function: Automatic cleaning with pure water - Residual Volume: ≤0.2ml Thank you for viewing.