Unverified85% confidenceFactTime unknown
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）
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
UnverifiedHFC-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77% similarUnverified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72% 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%70% similarUnverified空气净化器认准真HEPA H13级别（对0.3微米颗粒过滤效率≥99.95%），H11/H12效率仅95%-99.5%；标注'HEPA type'或'HEPA-like'的为仿制滤材，无国标认证，不建议购买67% similarUnverifiedHEPA滤芯等级H11过滤效率约95%、H13约99.95%、H14约99.995%，家用H13已足够，H14用于洁净室场景，级别越高对风机功率要求越高从而增加噪音和能耗67% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/335248API
curl https://kongchang.com/api/v1/knowledge/claims/335248MCP
get_claim(id=335248)