The NPO "Mold Consultation Center" accepts consultations by phone while conducting research on mold. The most important thing is to prevent mold from inhaling as much as possible.
"Black mold" that occurs on the joints of walls and floors is said to be difficult to remove just by rubbing. It is important to ventilate sufficiently, wipe off moisture, and not leave stains that are nutrients for mold, says a Tokyo Gas house cleaning instructor. The key points of mold countermeasures are: keep the ventilation fan running all the time if possible.