[Pneumopathy secondary to the improper use of a dust-removing spray]

We report the case of a 24 year-old woman who presented constitutional symptoms with dyspnoea on exertion accompanied by an interstitial pneumonitis in both lower lobes. The history revealed an excessive use of household dust-away cleansing spray. The diagnosis was established by bronchoalveolar lavage associated with appropriate steining. The early diagnosis is critical because of the progression to fibrosis and the risk of cancerisation.