TOREADFoldable Steam Sauna, Portable Sauna Steam Room，Full Body Home Personal Sauna Tent New with 2.6L & 1000W Steam Suana at Home Sauna

is this a standard electric connection

Is the material inside the box toxic when it comes in contact with the steam? Many of these products have a smell of burning plastic when being used.

Are there any confirmed fatalities related to these?

Why does this thing advertise in the photos the usage of Salt but yet no one can answer if salt works well with this thing?