[KongchangAI]
Unverified80% confidenceTradeoffTime unknown

负离子净化能力与'颗粒物CADR值'是两回事:负离子通过让颗粒物带电沉降来'除尘',但污染物只是落到地面/墙面而非被过滤收集,会造成墙面'黑墙'现象,真正净化空气仍需HEPA滤网

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