One hottest day six years ago the respected Comrade Kim Jong Un visited a factory.
He looked it round and went to a workshop. It was air-conditioned but not fresh inside.
A factory official told him that he should not go in it. However he went in the workshop, saying that he should go in it, because the workers were working there.
Saying that their health is more precious than production results, he underlined that more ventilators should be set up within one or two days for their work at fresh air though it took more money.
Upholding the lofty intention of the respected Comrade Kim Jong Un, the factory officials got down to the work without delay to upgrade the air condition of the workshop.