mold in flooded basement, should I throw out everything?

[Guest guest]

Hot water heater broke while we are on vacation, caused bad mold in basement.

The insurance got us a restoration company. They will unfinish my basement, all

the panels and ceilings will be out. Now, the clothes store in the basement and

some old books are my husband's, he does not want to throw them out, so the

workers packed books in paper boxes, sealed with tape, clothes in plastic bags,

and left them in my garage for now. They suggest us to wash the clothes.

They did put in something to push the filtered air outside the basement from the

basement window.

I always thought we should throw out everyting moldy. Are we on the right track?

Mei