Home Appliances Get a Hygiene Makeover

SEOUL—The roughly $500 billion home-appliance industry is making a hard pivot toward hygiene as the coronavirus pandemic shows no sign of moderating.

LG Electronics Inc.’s refrigerators have been retrofitted with sterilizing ultraviolet lights previously used in its water purifiers, while Whirlpool Corp. has touted washing machines with built-in heating that removes germs and allergens from clothes.

Samsung…