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Cleaning products such as bleach have been linked to serious lung conditions including bronchitis and emphysema.
Using disinfectants just once a week could increase someone's chance of developing chronic obstructive pulmonary disease (COPD), according to scientists from Harvard University and the French National Institute of Health and Medical Research (Inserm).
While cleaning products have previously been linked with asthma, this is believed to be the first time they have been connected to COPD - an umbrella term for conditions characterised by increasing breathlessness.