What protective gear do mold remediators use?

On a real removal we use gloves, eye protection, and respirators appropriate to the dust, plus suits when demolition will be messy. The more important protection for you is the containment and the negative air, so the gear is not the only thing between the work and the rest of the house.

A person in a Tyvek suit with no plastic barrier and no HEPA filtration is a costume. Ask about containment before you are impressed by the hood.