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适用面积估算公式：CADR值(m³/h) × 0.1 ≈ 最大适用面积(㎡)。若房间20㎡则需颗粒物CADR≥300，考虑换气频率想达到医用级别(5次/小时)应选CADR≥400的机型

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Unverified适用面积应按 CADR(m³/h) × 0.07~0.12 估算，实际使用取下限（0.12系数对应层高2.8m且要求换气频率5次/小时）。想快速净化选0.07系数，即CADR÷0.07=面积85% similar Unverified标称适用面积应按CADR推算，实际有效杀菌面积约为标称值的60-70%，30㎡房间建议选标称45㎡以上机型以保证换气循环次数达标81% similar Unverified婴儿房选购需按CADR÷房间面积≥5计算换气次数，即10㎡儿童房建议颗粒物CADR≥300m³/h以确保每小时换气5次以上，母婴场景比成人场景对换气次数要求更高75% similar Unverified婴儿房选购需按CADR÷房间面积÷房高计算换气次数，母婴场景建议换气≥5次/小时，即10㎡（层高2.6米）房间颗粒物CADR应≥130m³/h73% similar UnverifiedCADR越高性能越强但机身越大、噪音越大、功耗越高，家用不必盲目追求超高CADR，按面积匹配即可；30㎡以内客厅颗粒物CADR 400左右已足够，选600+主要为快速净化70% similar

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