Bryan Johnson· Author
it's been shown that a good air filter can reduce PM 2.5 by up to 40%
Loading…
The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
it's been shown that a good air filter can reduce PM 2.5 by up to 40%
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
Indoor particulate matter levels dropped by ~50% with HEPA filters and particle counts fell from ~6,300 to ~4,700 particles/cm³.