No, you cannot refill a Mr Fog vape. Mr Fog vapes are designed as disposable devices, meaning they come pre-filled with e-liquid and are intended for single use. Once the e-liquid runs out or the battery dies, the device is meant to be properly disposed of and replaced with a new one. Attempting to refill a disposable vape can damage the device, compromise its performance, and may pose safety risks. If you're looking for a reusable option, consider a refillable pod system or a vape mod designed for multiple uses.