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by ravel-bar-foo
1232 days ago
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Most indoor air purifiers have low purifcation thoroughput compared to the space they are designed for (30 min to 5% PM2.5 concentration migh be a typical filtration rate). If you model that as an exponential decay it's about 10% per minute, so a leak of unfiltered air which would replace 1% of room air per minute would result in a steady state of ~9% unfiltered air, or twice the contamination the filter was rated for. |
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