Chapter 4 — Toxic Smoke In Room 712

“The formaldehyde concentration seriously exceeded the standard, causing many students to show symptoms of poisoning.” On the main phone, Ms. Tran's screams continued. “So Chi Xuan, if you don't return within five minutes, I will deduct all your points for this semester!” I did not hang up, even though Ms. Tran's screams and the Center for Disease Control's questions intermingled. In the backup phone, the operator's voice was clear and calm. "Hello, this is the Center for Disease Control's public health complaint line. How can we help you?" real name accused room 712 of a university of someone illegally producing toxic chemicals, formaldehyde at the scene seriously exceeding standards school.”“Please pay attention to your own safety, do not get close to the source of pollution.”The call ended. I placed the backup phone face down on the table and picked up the main phone. Ms. Tran was panting on the other end of the line. "Who did you just call? How dare you call the police!" "Miss, it doesn't take five minutes." I leaned back in my chair, looking at the graduate exam question on the computer screen. "I've called the professional cleaning team to come for you, it will be there in ten minutes. You just stand in room 712, don't go anywhere." "Try to really smell Lam Hieu Hieu's startup scent." Without waiting for her to say more, I hung up the phone. Conveniently save the recording of the call just now, change the name to "Miss Tran threatens". Twenty minutes later. Two cars with the words "Hygiene Supervisor" and "Disease Control Center" printed on them were parked under the dormitory building. Following closely behind was a police car from the police station, its warning lights continuously flashing. The shrill siren tore through the quiet school lunch break. Four employees wearing chemical protective suits, gas masks, carrying two metal boxes, opened the car door and ran straight upstairs. The head of the security department followed behind and rushed up the stairs. The hallway was still filled with smoke. Ms. Tran was standing in the middle of room 712, covering her nose and mouth, pointing at the empty cardboard box on the ground and cursing endlessly. Lam Hieu Hieu stood next to him, still holding the electric iron in his hand, with a look of self-pity on his face. "Who called the police?" The first employee in protective gear pushed open the door. Ms. Tran was startled, looking at the tightly equipped group of people, her legs were weak, almost hitting the bed frame. "Comrades, this is just a misunderstanding." Ms. Tran quickly walked over, trying to use her body to cover the pile of plastic beads on the ground. "This is a student making handicrafts to start a business, there is only a slight smell of plastic. We can handle it internally, no need to bother everyone." The staff ignored her and walked straight into the middle of the dormitory. He opened the metal box and took out an air quality testing device. The probe was just raised in mid-air. “Whoosh, whoosh, whoosh!” The shrill red warning sound rang out violently in the dormitory. The numbers on the device screen kept jumping around and finally stopped. The staff looked at the screen, the voice penetrated the gas mask, the speed was very fast. "The formaldehyde concentration was 1.85 milligrams per cubic meter, twenty-three times higher than the air standard in a dormitory room. All immediately

Get out of here, open all the windows!" Ms. Tran's face immediately turned white. "Exceeded, exceeded standards twenty-three times?" She stammered. "This is an extremely toxic environment." The employee pointed to the electric iron that was still emitting white smoke. "Who allowed you to heat this type of industrial plastic of unknown origin in a closed space? Don't want to live anymore?" The iron in Lam Hieu Hieu's hand fell onto the table. Her face turned white, but her mouth still tried to argue. "This device is broken, right? This is just a normal plastic smell, how could it be poisonous? "It's obvious that the food waste left by So Chi Xuan was fermented. Miss, it really smells like trash!" She kicked the empty cardboard box on the ground again. At this moment, the phone in Ms. Tran's pocket vibrated. Trieu Tinh and Ly Van's phones also rang at the same time. In the rented apartment, I sent the video taken on the day of moving in to the chat group, and sent it privately to Ms. Tran. "Miss, this is a panoramic video of the bed I took a minute before leaving." I sent a voice message. "In the empty cardboard box there wasn't even a piece of paper. crumbs. What everyone smells is a cancer-causing substance that Lam Hieu Hieu bought for nine yuan." Ms. Tran opened the video. In the picture, my bed is clean, the drawer is open, the cardboard box is completely empty.