Features: 1. Fine atomized particles 2. High silent core 3. Small liquid residue 4. Quantity can be adjusted as you like Product parameters: Mesh Name: Mesh Nebulizer Dimensions given: 43mm(W)x58mm(W)x121mm(H) Power Supply: DC 3V+10%(2 “AA” Alkaline Battery) or lithium battery rated voltage 3.7V+20%(optional accessories), AC adapter (Input: 100240Output: 3V-5V DC, 1 -2A) Security grade: BF Power Consumption of Approx.1.5W Vibration Frequency: Approx.120KHz Nebulization Rate of 0.2ml/min minimum Medication Temperature: ≤41C° Working Voice: ≤50dB Particle size: 5um + 25% Medication Capacity: 8mI maximum, 0.5m minimum Battery life of approximately one and a half hours: Nebulize continuously: Nebulize continuously for one and a half hours. Lithium alkaline battery can be used for approximately 4 days if operating for 20 minutes per day by 2 “AA” alkaline battery, Lithium battery can be used for approximately 4 days if operating for 20 minutes per day by 2 “AA” alkaline batteries , Operating Temperature: Ambient Operating Temperature: Operating Temperature: Ambient Temperature: 10C-40C Relative humidity: s80%RH, no coagulation Air pressure: (86.0 ~ 106.0)kPa Storage Temperature: -20C-55C Storage Temperature: Ambient Temperature: -20C-55C Relative humidity: ≤80%RH. Air pressure: 70.0 ~ 1060kPa Accessory: Aerosol Mask with adult Nebulizer (option)AerosolMaskw/Nebulizer, children's (option), mouth piece (option),