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The models were equipped with an odour generator that injected hydrogen sulfide, methyl mercaptan, butyric acid, para\u2010cresol, and indole, allowing us to accurately and reliably reconstitute toilet malodour headspace. The malodorant concentrations matched the quantitative headspace analysis performed in African and Indian toilets. The toilet malodour headspace performance was validated by chemical and sensory analysis. Olfactory stimuli were presented to participants in different simulated climates to assess the effect of climate on the perception of odours. The sensory data show that increasing temperature and humidity decreased the intensity ratings of odours without altering their quality. Perfume can be delivered in these toilets by forced evaporation to control the headspace concentration, or by delivery systems such as cellulosic pads, liquids, and powders. Our experimental set\u2010up allowed us to establish dose\u2013response curves to assess the performance of a perfume in reducing toilet malodour and increasing perceived pleasantness.<\/jats:p>","DOI":"10.1002\/ffj.3450","type":"journal-article","created":{"date-parts":[[2018,4,17]],"date-time":"2018-04-17T03:52:33Z","timestamp":1523937153000},"page":"313-321","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Simulating latrine conditions to assess perfume performance against malodour"],"prefix":"10.1002","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2556-8981","authenticated-orcid":false,"given":"Charles Jean\u2010Fran\u00e7ois","family":"Chappuis","sequence":"first","affiliation":[{"name":"Corporate R&amp;D Division Firmenich SA Geneva Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robin","family":"Huber","sequence":"additional","affiliation":[{"name":"Corporate 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