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by deepGem
3922 days ago
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HEPA is not just to avoid smells or pollen. It's the only filter that can remove PM2.5 (particulate matter < 2.5 microns in size). WHO terms them as group 1 carcinogens and in most cities including NY, Houston etc, PM2.5 levels are far beyond safety limits. It's a shame that other auto manufacturers don't include a HEPA as their cabin filter. That might be because of gasoline engine limitations. |
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