How to convert blast ETH to ETH?

Could you please elaborate on the process of converting blast ETH to ETH? I understand that blast ETH might be a specific type of token or asset related to Ethereum, but I'm not familiar with the exact conversion steps. Is there a specific exchange or platform where this can be done? Are there any fees associated with the conversion? Additionally, is there a risk of losing funds during the process? It would be greatly appreciated if you could provide a clear and concise explanation of the conversion process.