General description Portable and compact, the Negative Ion Generator Wearable Air Purifier is designed to improve air quality by generating negative ions. This mini ionizer effectively cleans the air, making it ideal for personal use in small spaces such as homes or offices. Technical specifications Type: Negative ion Noise level: ≤ 50dB Oxygen supply: 1L/min Power source: Battery powered Benzene elimination rate: 90.00% Formaldehyde removal rate: 92.00% Field of application: Less than 10 m² Recommended usage area: 3-8 m³ Anion density: 4,000,000 ud/m³ Air volume: < 50 m³/h Voltage: 5V Size: 55 x 55 mm Material: Plastic Color: White Package Contents 1 x Negative Ion Generator Other information Note: Light and different displays may cause the color of the item in the picture to differ slightly from the actual product. The measurement allowed error is +/- 1-3 cm.