Very important note:
Following the war in Ukraine they are proliferating companies that offer bunkers and atomic shelters, without experience or knowledge.
REFUGIOS ATOMICOS ABQ S.L.  has no link or relation with any other imitator appeared lately. ABQ patented antiatomic shelters in Spain in 1980 and its creator is a nuclear engineer.
If your family is about the security of your family, make sure the degree and experience of those who design your refuge. Ask him many complex questions, for example about radioactivity. Ask real photographs of shelters built by the company, in different construction phases, at least five different.
His life and that of his family goes to it.

 Here the title of the founder of ABQ  and here some old references