For refrigerator and fridge use
Features:
1. Patented, exclusive piezo-electric technology
2. Compact size
3. Interval work for 2 months lifespan
4. No filters, zero maintenance cost
5. Power supply by a rechargeable Li battery
Specification: 
1. Negative Ion Density: 2 million/cc
2. Ozone Density: less than 0.05 ppm
3. Working Voltage: DC3.6V 
4. Rated Power: 0.15 W
5. Operation Temperature: -20 to 60 degree Celsius
6. Related Humidity: RH20-80%
7. Unit Weight: 50gs
Material: ABS Fireproofing Plastic
Standard part: product, charger, rechargeable Li battery
Packing Details:
Product Size: 75*45*22mm
Inner Box Size: 185*147*58mm
Master Carton Size: 500*309*385mm
Pieces/Carton: 32pcs
Net Weight/ctn: 9kgs
Gross Weight/ctn: 10kgs
Qty for 20 FCL: 14,784pcs
Qty for 40 FCL: 32,256pcs
LED color: Green
Standard Color: Grey, White
Approval: CE, UL
ROHS Directive: Yes