Unverified85% confidenceDecision RuleTime unknown
标称风量需看'额定净风量'而非'最大风量'，实际有效风量因管道阻力和滤芯阻力会衰减30%-40%，选型时应在计算需求上再上浮30%冗余
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Unverified不要只看标称最大风量选机：机器带满负荷滤网并接入管道后，实际有效风量通常衰减30%-50%，应关注在配阻状态下的实测风量91% similarUnverified标称风量需关注是否为'0静压'实测值，管道式在克服风阻后实际风量常衰减30%-50%，选型应在标称基础上留足余量或看'额定静压下风量'89% similarUnverified标称新风量需关注静压值下的实际风量：管道机在150Pa静压下的有效风量往往比标称（0静压）衰减30%-50%，管路越长越弯衰减越大，实际选型建议在标称值基础上预留30%余量85% similarUnverified标称新风量需看'额定风压下'数值而非'零静压'空转值，管道式因阻力实际衰减30%-50%，选购时按标称值打7折估算真实换气量85% similarUnverified壁挂式新风机标称换气量常虚标，实际有效风量约为标称值的60-70%，选购时应留20-30%余量，或看有阻力(带滤网)工况下的风量数据80% similar
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