Questions tagged [contaminate]

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How long should I quarantine items contaminated with the HSV-1 Virus (Cold Sore)?

I wanted to know how long does the HSV-1 virus lasts on, say, a tube of lip-balm? The reason I ask is I believe I gave myself a new cold sore by using a tube of lip balm that I had last used when I ...
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Do preservatives spoil?

I once heard that a problem with common food preservatives in the US is that they tend to spoil once exposed to oxygen and left at room temperature, leading to the instruction "refrigerate after ...
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Water filter (expired)

In public places, including public library, free drinking water systems are normally provided for public. Not all water filter system has water filter indicator light to let everyone knows when the ...