甲醛從何而來?香港新裝修單位 5 大主要源頭
新裝修單位嘅「新屋味」其實大多係甲醛 + VOC(揮發性有機化合物)混合氣味,世衛已列為一級致癌物。源頭主要 5 個:板材傢俬(夾板、密度板使用脲醛樹脂膠水)、油漆塗料(傳統油性漆 VOC 含量高)、地板(複合木地板釋放期長達 3-15 年)、布藝(窗簾、梳化染色劑)、黏合劑(雲石膠、踢腳線白膠)。其中訂造傢俬係香港細單位最大來源,因為密度板集中喺有限空間內,加上香港潮濕氣候會加速釋放。
甲醛濃度標準|香港室內空氣質素指引對比
環保署《辦公室及公眾場所室內空氣質素管理指引》:卓越級 ≤ 0.03 mg/m³,良好級 ≤ 0.1 mg/m³。內地 GB/T 18883 同樣係 0.1 mg/m³。新裝修單位首 3 個月平均濃度可達 0.3-0.6 mg/m³,超標 3-6 倍。建議花約 HKD 1,200-2,500 請專業公司用手持式甲醛檢測儀做基線測試,唔好用淘寶 200 蚊嘅家用機(誤差大過 ±50%),數據冇參考價值。
5 大除甲醛方法效果實測|邊個性價比最高?
1️⃣ 通風換氣(最有效):開窗 + 工業風扇 24 小時對流,3 個月可降低 60-80%,零成本。
2️⃣ 活性碳:吸附面積大但飽和快,每 2-3 週要換或曬太陽再生,HKD 300-800/套全屋。
3️⃣ 光觸媒:靠紫外線分解甲醛,香港室內光線弱效果有限,HKD 3,000-8,000 全屋施工。
4️⃣ 空氣淨化機(HEPA + 活性碳濾網):Sharp、Blueair、Dyson 中高階機 HKD 3,000-8,000,持續運行最穩定。
5️⃣ 除甲醛植物(吊蘭、虎尾蘭、龜背芋):純心理安慰,實測效果 < 1%。建議組合用:源頭減量 + 通風 + 空氣淨化機,三管齊下先有實質效果。
香港除甲醛公司收費 + 防伏 3 招
市面除甲醛公司分兩類:化學試劑封閉型(噴在板材表面,HKD 35-80/呎)、光觸媒型(HKD 50-120/呎)。500 呎全屋總價約 HKD 17,500-60,000。防伏注意:① 要求對方提供施工前後第三方檢測報告(唔可以用自己機自說自話);② 留意「7 天保證達標」條款是否清晰寫明罰則;③ 唔好相信「一次永久解決」,板材會持續釋放 3-15 年。AC 客戶實測,源頭減量 + 通風 6 個月比花錢做光觸媒更有效,亦更慳錢。揀公司前可先睇香港裝修公司評分準則,避開無牌作業嘅小工。
AC 設計師建議|源頭減量 5 大選材策略
裝修階段控制甲醛比事後除更高效。AC 為健康敏感客戶提供以下選項:① 訂造傢俬指定 E0 級板材(甲醛 ≤ 0.5 mg/L,HKD 加 8-15%);② 油漆選擇 Dulux 全效抗甲醛或 Benjamin Moore Aura(HKD 600-900/桶);③ 地板優選實木或無膠 SPC,避免複合夾板;④ 黏合劑改用環保白膠取代雲石膠;⑤ 入伙前安排強制通風期 30 日。可參考我們的建材選擇案例了解更多選材細節,或睇完工案例集看 AC 實際施工水平。如需專業設計顧問評估,可瀏覽我們的服務範圍或直接聯絡 AC 團隊。有業主關心預算分配,可參考500呎裝修報價了解環保材料對總預算嘅影響。
👉 致電 5222 1129 或 WhatsApp 查詢免費裝修諮詢,AC 設計師為您度身訂造健康家居方案。
English Summary
Newly renovated Hong Kong apartments often experience formaldehyde and VOC contamination from custom furniture, paint, flooring, fabrics, and adhesives. Indoor concentrations during the first three months can reach 0.3-0.6 mg/m³, exceeding the WHO safety threshold (0.1 mg/m³) by three to six times. With formaldehyde classified as a Group 1 carcinogen, indoor air quality becomes a critical health concern for new homeowners, particularly families with young children, elderly members, or anyone with respiratory sensitivities.
We compared five common removal methods. Ventilation combined with industrial fans for 24-hour airflow remains the most cost-effective, reducing formaldehyde by 60-80% within three months at zero cost. Activated carbon (HKD 300-800 per full home set) requires replacement every 2-3 weeks. Photocatalyst treatments (HKD 3,000-8,000) suffer from limited UV exposure in typical Hong Kong interiors. HEPA + activated carbon air purifiers from Sharp, Blueair, or Dyson (HKD 3,000-8,000) deliver the most consistent results. Air-purifying plants offer mainly psychological benefits with under 1% measurable impact.
Professional removal services in Hong Kong charge HKD 35-120 per square foot, totalling HKD 17,500-60,000 for a 500-sqft apartment. Beware of “permanent solution” claims since substrate materials continue off-gassing for 3-15 years. Always request third-party post-treatment verification and ensure performance guarantee clauses spell out clear penalties.
The AC Design team prioritises source reduction during the design phase. We specify E0-grade boards for custom furniture (an 8-15% upcharge), low-VOC paints such as Dulux Anti-Formaldehyde and Benjamin Moore Aura, solid wood or adhesive-free SPC flooring, and eco-friendly white glue replacing standard stone adhesives. A mandatory 30-day ventilation period before move-in is standard practice. Call 5222 1129 or WhatsApp us for a free consultation on a healthier home design tailored to your family’s needs.