Quit Smoking Before Your Lungs Turn Black: China TV Airs Graphic Anti-Smoking Ad Chinas major cities are known, in part, for their pollution
2010;34:J258J265
PMID 31539466
2010;340:b5569

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them: More common Abnormal dreams absence of menstruation change in taste difficulty having a bowel movement difficulty in moving excess air or gas in the stomach or bowels joint pain or swelling lack or loss of strength loss of taste muscle stiffness passing gas toothache trouble sleeping Less common Belching body aches or pain burning, dry, or itching eyes continuing ringing or buzzing or other unexplained noise in the ears decreased interest in sexual intercourse discharge, excessive tearing ear congestion feeling of constant movement of self or surroundings feeling of warmth hearing loss inability to have or keep an erection increased appetite increased urge to urinate during the night loss in sexual ability, desire, drive, or performance loss of voice nightmares redness in the joints redness of the face, neck, arms and occasionally, upper chest redness, pain, swelling of the eye, eyelid, or inner lining of the eyelid sensation of spinning sleepiness or unusual drowsiness stomach discomfort stuffy or runny nose transient, mild, pleasant aromatic odor trouble concentrating waking to urinate at night Rare Change in color vision difficulty seeing at night increased sensitivity of the eyes to sunlight night blindness seeing floating dark spots or material before the eyes Other side effects not listed may also occur in some patients

According to research by RIVM, there are no indications of additional environmental harm resulting from the absence of a filter