B737-700
Flight Attendant Current
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Maintenance; Flight Deck / Cabin / Aircraft Event Illness / Injury; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
General Evacuated; General Maintenance Action
Aircraft
I was the B FA (Flight Attendant) on Aircraft X. We had finished boarding. I was near the aft section of the cabin. I heard a passenger ask 'is that normal?'. There was then smoke coming from the back rows air vents. Smoke was quickly filling the cabin and the fumes were extremely strong. It was burning my nose and throat. I called the A and told him what was going on and to notify the pilots. It was getting harder to breathe and see. We decided to have passengers get off the aircraft for safety. I was getting very light headed; I went back to get the C FA and make sure no passengers were left behind. After everyone got off; the C and I did not feel well at all. We asked to have an EMT look at us. My heart rate was extremely high and blood pressure was high from my normal. We received oxygen. A supervisor met up with us and said she could smell the fumes coming off from us because it was so strong. We still felt very dizzy; lightheaded; my throat was sore and I felt pressure in the back of my head. We decided it wasn't safe for us to continue with our trip due to the exposure. I got further medical attention later at a hospital due to my throat feeling worse. Earlier our water lines were frozen. The mechanics were attempting to fix the frozen line and this all occurred.We also have a video that can prove how thick the smoke was
B737-700 Flight Attendant reported smoke emitting from air vents during boarding resulted in cabin crew experiencing health issues accompanied by passenger complaints. Passengers were deplaned and maintenance was requested.