Unverified75% confidenceFactTime unknown
HFC-152a的GWP（全球变暖潜能值）约124，HFC-134a约1300，注重环保应选152a成分或改用不含制冷剂的电动吹尘器
1
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75%
Confidence
Long-term
Relevance
-
First Seen
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Unverified气罐除尘器的气体主要是二氟乙烷（HFC-152a）或四氟乙烷（HFC-134a），HFC-152a易燃且价格低，HFC-134a不燃更安全，清洁高压电器或近火源作业应选HFC-134a成分78% similarUnverified使用HFC-152a（二氟乙烷）为推进剂的喷罐清洁力最强，但ODP虽为0其GWP仍达124，追求环保应选HFO-1234ze推进剂款（GWP<1）77% similarUnverified空调/新风机的HEPA过滤网选H11-H13级别即可满足家用除PM2.5需求，H13过滤效率≥99.95%，无需追求医疗级H14（阻力大幅增加会拖累风量和能耗）67% similarUnverified静电棉的过滤等级用F5-F9或H10以上标注，家用防尘选F7（对PM2.5过滤约65%）即可，H级别（H11-H13）风阻过大不适合作为空调加装层64% similarUnverifiedH13级HEPA对0.3微米颗粒过滤效率≥99.95%，H11约95%，家用新风选H12-H13即可满足PM2.5净化，盲目追求H14会显著增加风阻、降低新风量20%-30%64% similar
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