The Lost Mary 25000 is generally considered safe to use when used as intended and purchased from a reputable source. It is designed with built-in safety features like overcharge protection, short-circuit protection, and regulated power output to ensure user safety. However, as with any vaping product, safety also depends on responsible usage. It’s important to follow the manufacturer’s guidelines, avoid tampering with the device, and keep it away from extreme heat or moisture. If you have underlying health conditions or are new to vaping, it's always a good idea to consult a healthcare professional before use.