Model Number:MFK-K2 Power Source:Electric Application: For Commercial & Home Use Power Supply Mode:USB recharge Material Acrylic, Plastic, Resin Shelf Life:2 years Quality Certification: CE, SGS Instrument classification: Class II Safety standard: GB15979-2002 Product Name: Nebulizer Asthma Cough Fever Medical Nebulizer Material Plastic: Power Supply Mode:Removable Battery After-sale Service:Return and Replacement Safety standard:GB15979-2002 Instrument classification: Class one Display: LED Digital Display Accuracy:3mmHg Color:grey and white Nebulization Rate:More than 0.2ml/min