”It's so dirty I can't breathe”... Low-cost airline's in-flight hygiene problem = South Korea

The issue of ventilation in the cabin of Korean low-cost airline Air Premier has become a hot topic. On the 26th, according to Naver Traveler Cafe "Taesaran", a post on the 24th pointing out the hygiene condition of Air Premier
The comment was posted by Mr. A, who posted a photo of the interior of Air Premier flight YP602, which departed from Suvarnabhumi Airport in Bangkok and arrived at Incheon International Airport.
The photo posted by Mr. A shows an air conditioner inside the plane with a pitch black vent, and the black foreign matter in the photo is presumed to be mold and dust. Mr. A said, "The ventilation system is not being managed properly.
"We have no choice but to say this," he said, pointing out that "it is illegal to make passengers breathe this kind of air in an enclosed space." Air vents on airplanes expel carbon dioxide from inside the cabin and bring outside air into the cabin.
If ventilation control is not properly implemented, it could become a factor in inducing viruses that threaten the health of passengers.
When the controversy arose, the airline said, "The deep cleaning of this aircraft scheduled for the 30th was done by allocating manpower to ground time on the 24th.
"We have completed our check-in and check-out process," and "We will strive to maintain clean air inside the cabin." Netizens commented, "It's so dirty I can't breathe on the plane," "Are they not going to clean it?" and "It's so crowded."
"It's terrible considering it's a closed space," were some of the responses.