This product is a Yuwell 403A steam inhaler (nebulizer). Type: Air-compressing Nebulizer. Usage: Used to treat respiratory diseases by converting liquid medication into an inhalable mist. Features: Powerful oil-free compressor with low noise level. Design: Compact and easy to use at home. Disclaimer: This device is intended for medical use. Consult a specialist doctor before starting to use any medications via the nebulizer to determine the appropriate dosage and type of treatment for your health condition.