{"appears_in":[{"position":7,"ranking_slug":"best-air-purifiers-2026","ranking_title":"2026 年空气净化器怎么选：颗粒物/甲醛 CADR、CCM 等级、净化能效三项定生死，10 款横向对比","score":8.1,"url":"https://buyranker.com/ranking/best-air-purifiers-2026"}],"brand":"美的 (Midea)","buy_url":null,"canonical_url":"https://buyranker.com/product/midea-kj400g-e33-air-purifier","category":{"name":"空气净化器","slug":"air-purifier"},"cons":["除醛能力一般","做工与智能体验不如互联网品牌精致"],"description":null,"id":"d77a71e808929a4c7318f06e029f2842","image_url":null,"name":"美的 KJ400G-E33 空气净化器","official_url":null,"price":{"currency":"CNY","max":2299,"min":1399},"pros":["同价位 CADR 表现扎实","线下售后与滤芯供应有保障","促销期价格下探明显"],"release_year":null,"slug":"midea-kj400g-e33-air-purifier","specs":{"CADR":"405 m³/h","售后":"传统家电品牌，线下网点覆盖广","定位":"中端性价比客厅机","建议适用面积":"30–40㎡（按 0.08 系数折算）"},"summary":"标称 CADR 405 m³/h 的中端性价比机型，参数够用、售后网点覆盖广。"}