Unverified88% confidenceDecision RuleTime unknown
滤网配置应为初效（G4）+中效（F7/F8）+HEPA（H11-H13）三级，H13级对PM2.5去除率≥99.95%；只有单层HEPA无初效预过滤的机型，HEPA堵塞快、更换成本高
1
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88%
Confidence
Long-term
Relevance
-
First Seen
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Unverified过滤配置应为初效（G4）+高效（H11或H13）分级过滤，H13级对PM2.5一次去除率≥99.95%，H11约95%；仅有单层滤网或标称'HEPA'但不标等级的机型净化能力存疑92% similarUnverified标准三级过滤配置应为：G4初效（拦大颗粒、延长HEPA寿命）+ 活性炭（除甲醛异味）+ H13高效；缺初效滤网会导致HEPA快速堵塞，寿命缩短一半以上85% similarUnverified选择带H13级HEPA滤网的机型PM2.5一次通过去除率可达99.95%以上；仅配G4+F7中效滤网的机型对PM2.5去除率约60%~80%，雾霾严重地区（AQI常年>150）应选H12/H13以上85% similarUnverifiedHEPA滤网等级H13可过滤≥99.95%的0.3微米颗粒，H11为95%，是选购HEPA机型时判断过滤效率的关键参数84% similarUnverifiedHEPA滤网等级H11过滤效率约95%，H12约99.5%，H13达99.95%（可拦截0.3微米颗粒），选购除PM2.5/病毒应认准H13级别，H11不足以有效过滤细菌病毒82% similar
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