Related by context. Frequent words. (Click for all words.) 59 secondhand cigarette 58 hepatitis C lupus 58 mold fungi 57 pneumonia bronchitis 57 smoker inhales 57 aggravate respiratory 56 bronchitis asthma 56 lung irritant 55 bronchitis pneumonia 55 sterile ophthalmic otic 55 viral respiratory infections 54 lung cancer emphysema 54 respiratory irritant 54 Secondhand smoke causes 53 nitrous acid 52 soot inhalation 52 invisible odorless 52 animal dander 52 Thoroughly cooking 52 acrid black 52 Nitrogen oxide 52 viruses fungi 52 Air fresheners 52 secondhand tobacco 52 airborne germs 51 Carbon monoxide CO 51 allergy inducing 51 Mold spores 51 Viral infections 51 asthma chronic bronchitis 51 potent carcinogen 50 inhaling secondhand smoke 50 highly communicable 50 typhoid cholera 50 treat nicotine addiction 50 sidestream smoke 50 secondhand smoke 50 toxicants 50 asbestosis lung cancer 50 smoke 50 Cigarette smoke 50 Prenatal exposure 50 TB bacilli 50 bacteria viruses fungi 50 Diesel exhaust 49 cigarette smoke 49 reproductive toxins 49 soot smog 49 viruses parasites 49 odorless tasteless 49 muscle paralyzing 49 inhalation hazard 49 trigger allergic reactions 49 Dust mites 49 Nitrogen oxides 49 inhaled fumes 49 Tobacco Smoke 49 infectious bacterial 49 Improper disposal 49 Hydrogen sulfide 48 Passive smoking 48 bronchial infections 48 polyaromatic hydrocarbons 48 antibiotic resistant pathogens 48 tasteless odorless 48 bacterial fungal 48 pulmonary diseases 48 breathe secondhand smoke 48 Volatile organic compounds 48 inflammation autoimmune diseases 48 cat dander 48 toxic gasses 48 diarrhea cramps nausea 48 asthma hay fever 48 Fetal alcohol 48 Secondhand smoke 48 colorless odorless tasteless 48 microwave popcorn bags 48 Flame retardants 48 asthma bronchitis 47 Thick plumes 47 contagious respiratory 47 Odaiba district 47 Asthma sufferers 47 airborne droplets 47 Therein lurks 47 waterborne pathogens 47 carcinogenic compounds 47 aggravate asthma 47 Particle pollution 47 reproductive abnormalities 47 corrosives 47 % #F# 6v.jsn 47 meningitis pneumonia 47 smog acid 47 TFN NEWS BRIEFING Pharmaceuticals 47 Bacterial infections 47 Artificial sweeteners 47 mutagens 47 colds coughs 47 Particulate matter