Feature: 1. Humidifier atomizer, ultra‑fine spray particles, large atomization, high atomization height. 2. Low driving voltage, low power consumption, low impedance, stable waveform and high conversion efficiency. 3. Ultra‑fine spraying, with a pore diameter of about 5μm and 740 holes, which can effectively moisten the air. 4. Low dielectric loss, low heat resistance, corrosion resistance, acid and alkali resistance, and long service life. 5. humidifier accessories, easy to install and use, can directly replace old parts. Specification: Item Type: Humidifier Atomizer Material: Stainless Steel + Rubber Weight: Approx. 3g / 0.1oz Voltage: 5V Current: 300mA Power: 2W Aperture: 5μm Number of Holes: 740 Punching Area: Diameter 3mm / 0.12in Steel Sheet Diameter: Approx. 16mm / 0.63in Outer Diameter of Rubber : Approx. 20mm / 0.79in Resonance Frequency: 108KHz±3KHz Resonance Resistance: Maximum 100Ω Package List: 1 x Humidifier Atomizer Note: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.