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新风量选择按房间面积×层高×换气次数(0.7-1次/h)计算，如20㎡卧室层高2.8m需≥40m³/h，客厅+卧室全屋建议选250-350m³/h机型

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Unverified换气量选择按每人30m³/h新风量计算，卧室按面积×层高×换气次数(0.7-1次/h)取较大值，例如3口之家客厅应选风量≥150m³/h的机型94% similar Unverified新风机风量选择按适用面积×层高×换气次数计算，家用推荐换气次数≥0.5次/小时，即100㎡（层高2.8米）需风量≥140m³/h，卧室单间建议选150m³/h机型以留余量94% similar Unverified新风机换气量选择应满足每人每小时≥30m³，卧室按面积计算风量≥房间体积×0.5(每小时换气0.5次)，例如15㎡卧室(层高2.7m)需风量≥20m³/h，但考虑衰减建议选标称150m³/h以上机型92% similar Unverified通风量选择应按房间面积匹配：单个通风器有效通风量建议达到每人30m³/h，一间15㎡卧室至少选择通风量≥30m³/h的型号，客厅或多人房间需选可调多档或安装多个91% similar Unverified卧室单间选购通风器时，通风量按房间容积×换气次数计算：卧室建议0.5-1次/小时换气，10㎡（约25m³）卧室选通风量30-50CMH即可，过大会造成体感冷风和噪音91% similar

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