Urea formaldehyde (found in pressed board, a common building material) A person who has inhaled formaldehyde can develop bronchospasm and pulmonary edema. In can cause eye irritation, upper airway irritation, and lower airway and chronic pulmonary obstruction at various parts per million. A link has also been established between formaldehyde and nasopharyngeal cancer and leukemia. https://hazmap.nlm.nih.gov/category-details?id=271&table=copytblagents Bleach (a cleaning/disinfectant product) While bleach is a commonly used household cleaning product, regular domestic use as a risk factor for asthma was uncertain (Matulonga et al., 2016). It was discovered that bleach use is linked to non-allergic asthma in women (Matulonga et al., 2016). It was linked to broncial hyperresponsiveness, asthma-like symptoms and chronic cough in women without allergic sensitization (Matulonga et al., 2016). Matulonga, B., Rava, M., Siroux, V., Bernard, A., Dumas, O., & Pin, I...