My DIL is a senior nurse and told me ages ago that antibacterial sprays had to be left on a surface to be effective. Tonight I see in small letters at bottom of advert that contact has to be for five minutes, even though the advert shows a person spraying and wiping immediately. Does anyone leave it on for 5 minutes and let it dry on the surface or am I just an idiot that’s been spraying and wiping.
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