雾培是气培的一种高级变体，它使用超声波雾化器或加湿器产生超细营养雾（fog），其液滴大小为5-30微米，远小于标准气培喷嘴。微小的液滴深入根部组织，从而实现极快的养分吸收和生长。
关键事实
- Droplet size: 5–30 microns — smaller than aeroponic nozzles (50–100 microns)
- Ultra-fine fog penetrates root hairs directly, maximising absorption efficiency
- Ultrasonic foggers are inexpensive but can deposit mineral salts and overheat reservoirs
- High-pressure fogponics uses specialised atomising nozzles for commercial-scale operation
- Produces some of the fastest root development observed in soilless systems
- Sensitive to power interruptions — roots dry out very quickly without continuous fog