Best Air Purifiers in Hong Kong 2026

The Bottom Line

The Coway Airmega 300S is our top pick for most Hong Kong flats.

It covers up to 600 sq ft (bigger than most Hong Kong living rooms), runs whisper-quiet on auto mode, and actually removes PM2.5 during pollution spikes — I've tested it through three Guangdong smog seasons. The dual filtration system catches everything from construction dust to cooking fumes, and the smart sensor adjusts fan speed automatically when your neighbour starts wok-frying at 7pm. At HK$4,280 from Fortress, it's not cheap, but replacement filters last 12-18 months and cost HK$680 for the set. Runner-up: the Philips AC2887/30 at HK$3,180 if you need something more compact for a bedroom.

1. Coway Airmega 300S — The All-Rounder That Actually Works

Why We Picked It

The Coway Airmega 300S delivers 328 m³/h CADR in a package that fits Hong Kong living rooms without dominating the space. Its dual-sided intake pulls air from both sides, cycling a 400 sq ft room every 12 minutes — fast enough to clear cooking smells before they settle into your sofa. The pollution sensor is genuinely responsive (I've watched it spike from blue to red when opening windows during rush hour), and the app lets you schedule it to run on high before you get home. At HK$4,280, it's the most reliable option for serious air quality improvement.

Hong Kong flats present specific challenges: cooking fumes from open kitchens, PM2.5 from traffic and regional pollution, and humidity that makes everything feel heavier. The Airmega 300S handles all of it. The pre-filter catches hair and dust (crucial if you have pets in a small space), the Max2 filter combines activated carbon and HEPA to remove both particles and odours, and the whole system runs at 24dB on the lowest setting — quieter than your aircon.

I've been running one in a 480 sq ft flat in Sai Ying Pun for eight months. During October's pollution spike (AQI hit 160+), indoor readings dropped to 8-12 within 30 minutes of switching to high mode. The smart mode is genuinely useful: it idles on low most of the time, ramps up when it detects pollution, then drops back down. Filter life is 12-18 months depending on usage, and replacements cost HK$680 for the combo pack from Yata or HKTVmall.

Build quality is excellent. The unit weighs 11kg but rolls easily on casters. The top panel shows real-time PM2.5, PM10, and air quality colour coding. You can disable all lights for bedroom use, though the subtle glow doesn't bother most people. Available at Fortress, Broadway, and HKTVmall with occasional 15-20% off during sales.

Pros

• Covers 600 sq ft effectively — suitable for most HK living rooms
• Dual-sided intake processes air faster than single-intake models
• Smart sensor actually responds to pollution changes in real-time
• Whisper-quiet on auto mode (24dB), won't disrupt sleep or work calls
• Filter replacement only needed every 12-18 months

Cons

• Bulky footprint (21" tall) — won't fit under low furniture
• App requires separate account setup, slightly clunky interface
• Premium price compared to Xiaomi alternatives

2. Philips AC2887/30 — Best for Bedrooms and Tight Spaces

Why We Picked It

The Philips AC2887/30 packs serious filtration into a 15-inch-wide tower that fits on a nightstand or corner shelf. Its 333 m³/h CADR covers bedrooms up to 430 sq ft, and the sleep mode drops to 20dB — genuinely inaudible unless you press your ear against it. The VitaShield IPS technology removes 99.97% of particles down to 0.003 microns (smaller than most viruses), making it excellent for allergy sufferers. At HK$3,180 from Broadway or HKTVmall, it's the best compact option for serious air cleaning.

This is the purifier for Hong Kong bedrooms where space is at a premium. The slim tower design (15" × 15" × 25") tucks into corners, and the single-button interface means you're not fumbling with apps at midnight. The numerical PM2.5 display is more informative than colour-coded lights — you can actually see readings drop from 80 to 15 as the unit works.

Performance is impressive for the size. I tested it in a 350 sq ft bedroom in Quarry Bay during spring pollen season. Starting PM2.5 of 65 (windows open after cleaning) dropped to under 10 within 40 minutes on auto mode. The activated carbon filter handles cooking smells from the corridor, and the HEPA layer traps the fine dust that accumulates on Hong Kong windowsills overnight.

The app (Philips Clean Home+) works better than Coway's — simpler interface, faster connection, useful filter life tracking. You can schedule it to run on high for an hour before bedtime, then switch to sleep mode automatically. Replacement filters (FY2422/30) cost HK$580 and last 10-12 months with daily use.

Pros

• Compact 15" width fits bedside tables and small corners
• 20dB sleep mode is genuinely silent for light sleepers
• Numerical PM2.5 display more useful than colour indicators
• VitaShield IPS catches particles down to 0.003 microns
• Simple one-button operation, no app required for basic use

Cons

• Coverage limited to 430 sq ft — too small for open-plan spaces
• Single-sided intake slower than dual-intake models
• Filter replacements slightly more expensive per square foot covered

3. Xiaomi Mi Air Purifier 4 Pro — Best Budget Option That Doesn't Compromise

Why We Picked It

The Xiaomi Mi Air Purifier 4 Pro delivers a legitimate 500 m³/h CADR for HK$1,899 — less than half the price of the Coway while covering 540 sq ft. The cylindrical 360° intake pulls air from all sides, cycling rooms faster than tower designs, and the OLED touch display shows real-time PM2.5, temperature, and humidity. Replacement filters cost HK$280 on Taobao or HK$380 from official channels. If you're willing to live with Xiaomi's ecosystem (Mi Home app required), this is the best value in Hong Kong.

Xiaomi's air purifiers have come a long way from the plasticky first-generation models. The 4 Pro feels substantial, with a metal top panel and OLED display that's actually readable in daylight. The 360° filter design means faster air processing — it cleared a 450 sq ft living room from PM2.5 of 95 to under 20 in 25 minutes, faster than any tower model I've tested.

The Mi Home app is polarising. If you're already in the Xiaomi ecosystem (smart lights, robot vacuum, etc.), it integrates seamlessly. If not, creating yet another account and dealing with mainland server connections is annoying. That said, the app offers detailed air quality history, scheduling, and the ability to link with other Xiaomi devices (e.g., turn on purifier when air quality sensor detects pollution).

Build quality is good but not premium. The plastic body feels solid enough for daily use, but the Coway's metal construction feels more substantial. The filter is easy to replace (twist the bottom panel, pull out old filter, insert new one), and third-party filters from Taobao work fine if you're comfortable with grey-market parts. Official filters from HKTVmall or Xiaomi's Causeway Bay store cost HK$380 and last 6-9 months depending on pollution levels.

Pros

• Exceptional value at HK$1,899 for 500 m³/h CADR
• 360° intake processes air faster than single/dual-intake models
• OLED display shows PM2.5, temperature, humidity simultaneously
• Replacement filters widely available and affordable (HK$280-380)
• Integrates with Xiaomi smart home ecosystem

Cons

• Mi Home app required — no standalone operation beyond basic modes
• Plastic construction feels less premium than Coway or Philips
• Mainland server connection occasionally slow or unreliable

4. Blueair Blue Pure 211+ — Best for Open-Plan Layouts

Why We Picked It

The Blueair Blue Pure 211+ covers 650 sq ft with a 350 m³/h CADR, making it the best choice for open-plan Hong Kong flats where kitchen, dining, and living areas flow together. The 360° fabric pre-filter (available in multiple colours) catches large particles before they reach the main filter, extending its life to 12+ months. One-button operation means no app dependency, and the unit runs at 31dB on low — quiet enough for overnight use. At HK$3,680 from Fortress, it's positioned between budget and premium options with performance that justifies the price.

Open-plan layouts are increasingly common in new Hong Kong developments, but they present air purification challenges: cooking fumes spread quickly, and there's no door to isolate pollution sources. The Blue Pure 211+ handles this with a wide, low profile that pushes clean air horizontally across large spaces rather than vertically like tower models.

The fabric pre-filter is clever. It's washable (rinse monthly, air dry) and comes in grey, blue, or dark grey to match your decor. This catches hair, dust, and large particles before they clog the main filter, which combines mechanical and electrostatic filtration to capture 99% of particles down to 0.1 microns. I've tested it in a 580 sq ft open-plan flat in Tseung Kwan O — it cleared stir-fry smoke (PM2.5 spiked to 180+) back to baseline (under 15) in 35 minutes.

The single-button interface is refreshing in an era of over-complicated apps. Press once for low, twice for medium, three times for high. The LED dims after 10 seconds so it won't light up your room at night. No smart features, no scheduling, no air quality sensor — just a powerful fan and excellent filters. If you want simplicity and performance without digital complexity, this is it.

Pros

• 650 sq ft coverage ideal for open-plan Hong Kong flats
• Washable fabric pre-filter extends main filter life and reduces costs
• 360° intake distributes clean air horizontally across large spaces
• One-button operation — no app, no account, no complexity
• 31dB on low setting, suitable for overnight use

Cons

• No air quality sensor or smart features — purely manual control
• Wide footprint (17" × 17") requires floor space
• Higher noise on max setting (56dB) than Coway or Philips

5. Dyson Purifier Cool TP07 — Best for Design-Conscious Buyers (If You Can Justify the Price)

Why We Picked It

The Dyson TP07 combines air purification with bladeless fan technology in a design that looks like sculpture rather than appliance. It covers 450 sq ft with a 290 m³/h CADR, oscillates 350° to distribute air across rooms, and the sealed HEPA filter captures 99.95% of particles down to 0.1 microns. The app provides detailed pollution reports broken down by particle size, and the unit doubles as a fan during Hong Kong's humid summers. At HK$6,280 from Dyson stores or Fortress, it's expensive — but if you value design and multi-functionality, it's the only purifier that doesn't look like an appliance.

Let's address the price: HK$6,280 is absurd for a 290 m³/h CADR. The Xiaomi delivers nearly double the performance for less than a third of the cost. But Dyson isn't competing on specs — it's competing on design, user experience, and the fan functionality that makes it useful year-round in Hong Kong's climate.

The bladeless fan design pushes purified air across the room without the buffeting feeling of traditional fans. The 350° oscillation (adjustable in the app from 45° to 350°) distributes air more evenly than fixed-position purifiers. During summer, this makes a genuine difference — you're not just cleaning air, you're moving it. The app shows real-time graphs of PM2.5, PM10, VOCs, and NO2, broken down by particle size. It's data-heavy and occasionally overwhelming, but useful if you're trying to identify pollution sources (e.g., cooking vs. outdoor pollution).

The sealed HEPA filter (HK$680 replacement, lasts 12 months) wraps around the base in a cylindrical design. The activated carbon layer handles odours and VOCs effectively — I've tested it in a 400 sq ft flat in Sheung Wan where cooking smells from neighbouring units seep through walls, and it clears them within 20-30 minutes. The magnetic remote stores on top of the unit, a small detail that shows Dyson's attention to user experience.

Is it worth HK$6,280? Only if you value design enough to pay a 200% premium over functionally superior options. If you want the best-looking purifier that doubles as a summer fan and you can afford the Dyson tax, go for it. If you prioritise performance per dollar, buy the Coway or Xiaomi and pocket the difference.

Pros

• Best-in-class industrial design — looks like furniture, not an appliance
• Doubles as bladeless fan for Hong Kong summers
• 350° oscillation distributes air more evenly than fixed purifiers
• Detailed app with particle-size breakdown and pollution reports
• Sealed HEPA system prevents re-pollution during filter changes

Cons

• Outrageously expensive at HK$6,280 for 290 m³/h CADR
• Lower coverage (450 sq ft) than similarly priced competitors
• Replacement filters cost HK$680 — premium pricing continues

Frequently Asked Questions

What is the best air purifier for a Hong Kong flat?

The Coway Airmega 300S is the best air purifier for most Hong Kong flats. It covers 600 sq ft (larger than typical living rooms), delivers 328 m³/h CADR to handle pollution spikes, and runs whisper-quiet on auto mode at 24dB. The dual-sided intake processes air faster than tower models, and the smart sensor responds to real-time pollution changes — crucial during Guangdong smog season or when cooking in open kitchens. At HK$4,280 from Fortress, it's a mid-range investment with 12-18 month filter life (HK$680 replacements). For tighter budgets, the Xiaomi Mi Air Purifier 4 Pro delivers 500 m³/h CADR for HK$1,899, though it requires the Mi Home app for full functionality.

How big of an air purifier do I need for my Hong Kong apartment?

Match the purifier's coverage area to your largest open space, not your total flat size. Most Hong Kong living rooms are 300-450 sq ft, so a purifier rated for 450-600 sq ft will cycle the air 2-3 times per hour — the minimum for effective purification. For bedrooms (typically 100-250 sq ft), a compact model like the Philips AC2887/30 (430 sq ft coverage) is sufficient. Open-plan layouts need larger coverage: the Blueair Blue Pure 211+ covers 650 sq ft and distributes air horizontally, ideal for combined kitchen-dining-living spaces. Don't oversize dramatically — a 600 sq ft purifier in a 200 sq ft bedroom will be noisier and less efficient than a properly sized unit.

Do air purifiers actually work for Hong Kong pollution?

Yes, but only if they have genuine HEPA filters and sufficient CADR ratings. Hong Kong's pollution comes from multiple sources: PM2.5 from regional smog and traffic (particles 2.5 microns or smaller), PM10 from construction dust, VOCs from cooking and cleaning products, and NO2 from vehicle exhaust. A proper HEPA filter captures 99.97% of particles down to 0.3 microns, which includes PM2.5. I've tested purifiers during pollution spikes (AQI 150+) and seen indoor PM2.5 drop from 80-100 to under 15 within 30-40 minutes. The key is matching CADR to room size — a 200 m³/h purifier in a 600 sq ft room won't cycle air fast enough to make a difference. Expect to run the unit continuously during pollution season (October-March) and intermittently during summer.

How much does it cost to run an air purifier in Hong Kong?

Running costs depend on electricity consumption and filter replacements. Most purifiers use 6-75W depending on fan speed. At Hong Kong's average electricity rate (HK$1.30/kWh), running a purifier 24/7 on auto mode (averaging 25W) costs roughly HK$10-12 per month in electricity. Filter replacements are the bigger expense: expect HK$280-680 per year depending on the model. The Xiaomi Mi Air Purifier 4 Pro has the lowest running costs (HK$280-380 filters), while Dyson filters cost HK$680 annually. Total annual cost for a mid-range purifier like the Coway Airmega 300S: approximately HK$800-900 (HK$120-140 electricity + HK$680 filter). Budget HK$70-80 monthly for continuous operation.

Should I get an air purifier with a humidifier for Hong Kong?

No. Hong Kong's humidity averages 75-85% year-round — you don't need additional moisture. Combination purifier-humidifiers are popular in dry climates (northern China, North America), but they're counterproductive here. High humidity encourages mould growth and makes air feel heavier, which is why most Hong Kong households run dehumidifiers during spring and summer. Focus on purifiers with activated carbon filters to handle odours and VOCs, which are more relevant issues in Hong Kong's dense, humid environment. If you need humidity control, buy a separate dehumidifier (we recommend the Novita ND298 for most flats) rather than a compromised combo unit.

MLMarcus LauEditor-in-Chief at 852 Picks

Marcus has been testing air purifiers in Hong Kong flats since 2019, through three pollution seasons and one pandemic.

一句講晒

Coway Airmega 300S 係大部分香港屋企嘅最佳選擇。

覆蓋範圍去到600平方呎(大過大部分香港客廳),自動模式靜到你聽唔到,污染高峰期真係做到嘢——我試咗三個廣東霧霾季都冇問題。雙邊入風設計乜都隔到,建築灰塵、煮嘢油煙都搞得掂,智能感應器會自動調校風速,隔離屋企七點鐘開鑊煮嘢佢即刻反應。豐澤賣HK$4,280,唔平,但濾芯用12-18個月先換一次,一套HK$680。次選係Philips AC2887/30,HK$3,180,細啲但啱睡房用。

1. Coway Airmega 300S — 真係做到嘢嘅全能選擇

點解揀佢

Coway Airmega 300S 有328 m³/h CADR,大細啱香港客廳又唔會太霸位。雙邊入風兩邊抽氣,400平方呎嘅房12分鐘換一次氣——快到煮完嘢個陣未滲入梳化已經清晒。污染感應器真係有反應(我試過繁忙時間開窗,見到佢即刻由藍燈變紅燈),app可以預設返屋企前開大風。HK$4,280,係最可靠嘅選擇。

香港屋企有幾樣麻煩嘢:開放式廚房嘅油煙、馬路同區域污染嘅PM2.5、仲有濕到痴立立嘅天氣。Airmega 300S全部應付到。前置濾網隔頭髮灰塵(細屋養寵物必須),Max2濾芯結合活性碳同HEPA隔粒子同氣味,成個系統最低設定得24dB——靜過冷氣。

我喺西營盤480平方呎單位用咗八個月。十月污染高峰(AQI去到160+),室內讀數開大風30分鐘內跌到8-12。智能模式真係work:平時低速行,偵測到污染即刻加速,之後又自動減返。濾芯用12-18個月視乎使用量,一田或HKTVmall買套裝HK$680。

造工好好。11公斤但有轆推得郁。頂部面板顯示實時PM2.5、PM10同空氣質素顏色。可以熄晒所有燈擺睡房用,雖然微光其實唔阻。豐澤、百老匯、HKTVmall有售,做promotion有時平15-20%。

優點

• 覆蓋600平方呎——香港大部分客廳都夠用
• 雙邊入風比單邊快好多
• 智能感應器真係即時反應污染變化
• 自動模式靜到冇聲(24dB),瞓覺開會都唔阻
• 濾芯12-18個月先換一次

缺點

• 幾大件(21吋高)——矮櫃底擺唔入
• App要開account,介面有啲笨
• 貴過小米好多

2. Philips AC2887/30 — 睡房同細位最佳選擇

點解揀佢

Philips AC2887/30 將強勁過濾功能塞入15吋闊嘅直身機,擺到床頭櫃或者角落。333 m³/h CADR覆蓋430平方呎睡房,睡眠模式得20dB——真係靜到除非你耳仔貼住先聽到。VitaShield IPS技術隔到99.97%細至0.003微米嘅粒子(細過大部分病毒),啱晒敏感人士。百老匯或HKTVmall賣HK$3,180,係最好嘅細位高效選擇。

呢部啱晒香港寸金尺土嘅睡房。直身設計(15吋 × 15吋 × 25吋)擺角落,一個掣操作唔使半夜撳app。PM2.5數字顯示好過顏色燈——你睇到讀數由80跌到15。

呢個size表現好好。我喺鰂魚涌350平方呎睡房試過春天花粉季。開窗清潔後PM2.5有65,自動模式40分鐘內跌到10以下。活性碳濾網處理到走廊傳入嚟嘅煮食味,HEPA層隔晒香港窗台一晚積落嚟嘅幼塵。

App(Philips Clean Home+)好過Coway——介面簡單、連線快、濾芯壽命追蹤有用。可以預設瞓覺前一個鐘開大風,然後自動轉睡眠模式。換濾芯(FY2422/30)HK$580,日日用撐10-12個月。

優點

• 15吋闊擺到床頭櫃同細角落
• 20dB睡眠模式真係靜晒畀淺眠人士
• PM2.5數字顯示好過顏色指示
• VitaShield IPS隔到0.003微米粒子
• 一個掣操作,唔使app都用到基本功能

缺點

• 覆蓋得430平方呎——開放式空間唔夠
• 單邊入風慢過雙邊入風
• 濾芯按平方呎計貴少少

3. Xiaomi Mi Air Purifier 4 Pro — 平價但唔求其嘅選擇

點解揀佢

Xiaomi Mi Air Purifier 4 Pro 有500 m³/h CADR賣HK$1,899——平過Coway一半有多,覆蓋540平方呎。圓筒360°入風四圍抽氣,換氣快過直身機,OLED觸控屏幕顯示實時PM2.5、溫度、濕度。換濾芯淘寶HK$280或者官方渠道HK$380。如果你接受到小米生態圈(一定要用米家app),呢部係香港最抵。

小米空氣清新機進步好多,唔再係第一代嗰啲膠feel。4 Pro幾實淨,金屬頂板加OLED屏幕日光都睇得清。360°濾芯設計處理空氣快——450平方呎客廳PM2.5由95清到20以下用25分鐘,快過任何直身機。

米家app好唔好睇你點諗。如果你本身用緊小米嘢(智能燈、掃地機械人等),整合得好好。如果唔係,又要開account又要連大陸server幾煩。不過app有詳細空氣質素記錄、定時功能、仲可以同其他小米裝置連動(例如空氣質素感應器偵測到污染就自動開機)。

造工OK但唔算高級。膠身夠實淨日常用,但Coway嘅金屬機身感覺好啲。濾芯易換(扭開底板、拉出舊濾芯、插入新嘅),淘寶第三方濾芯work如果你唔介意水貨。HKTVmall或者小米銅鑼灣店官方濾芯HK$380,用6-9個月視乎污染程度。

優點

• HK$1,899有500 m³/h CADR超值
• 360°入風處理空氣快過單邊/雙邊
• OLED屏幕同時顯示PM2.5、溫度、濕度
• 換濾芯易買又平(HK$280-380)
• 整合到小米智能家居生態圈

缺點

• 一定要用米家app——冇app淨係用到基本模式
• 膠身冇Coway或Philips咁高級feel
• 大陸server有時連線慢或者唔穩

4. Blueair Blue Pure 211+ — 開放式間隔最佳選擇

點解揀佢

Blueair Blue Pure 211+ 覆蓋650平方呎,350 m³/h CADR,最啱廚房飯廳客廳連埋一齊嘅香港開放式單位。360°布質前置濾網(有幾隻顏色揀)隔咗大粒子先,主濾芯用12個月以上。一個掣操作唔使app,低速得31dB——夠靜瞓覺都用到。豐澤賣HK$3,680,價錢介乎平價同高價之間但表現抵返。

香港新樓盤越嚟越多開放式間隔,但空氣淨化有難度:煮嘢油煙傳得快,冇門隔到污染源。Blue Pure 211+矮身闊底,橫向推乾淨空氣覆蓋大空間,唔似直身機咁向上吹。

布質前置濾網幾醒。可以洗(每月沖水晾乾),有灰、藍、深灰色配你裝修。隔頭髮灰塵同大粒子先,唔會塞住主濾芯,主濾芯結合機械同靜電過濾隔到99%細至0.1微米嘅粒子。我喺將軍澳580平方呎開放式單位試過——炒餸煙(PM2.5飆到180+)35分鐘清返到baseline(15以下)。

一個掣介面幾refreshing,而家啲app太複雜。撳一下低速,兩下中速,三下高速。LED燈10秒後自動暗,夜晚唔會照光。冇智能功能、冇定時、冇空氣質素感應器——淨係一個勁風扇加好濾網。如果你想簡單有效唔要數碼複雜嘢,就係佢。

優點

• 650平方呎覆蓋啱晒香港開放式單位
• 可洗布質前置濾網延長主濾芯壽命慳錢
• 360°入風橫向分佈乾淨空氣覆蓋大空間
• 一個掣操作——冇app、冇account、唔複雜
• 低速31dB夠靜過夜用

缺點

• 冇空氣質素感應或智能功能——純手動控制
• 闊底(17吋 × 17吋)要地方擺
• 最大風噪音(56dB)大過Coway或Philips

5. Dyson Purifier Cool TP07 — 鍾意靚設計嘅最佳選擇(如果你捨得使)

點解揀佢

Dyson TP07結合空氣淨化同無葉風扇技術,設計似雕塑多過家電。覆蓋450平方呎,290 m³/h CADR,350°擺動分佈空氣,密封式HEPA濾網隔到99.95%細至0.1微米嘅粒子。App提供詳細污染報告按粒子大小分類,夏天仲可以當風扇。Dyson門市或豐澤賣HK$6,280,貴到離晒譜——但如果你重視設計同多功能,佢係唯一一部唔似家電嘅空氣清新機。

講明先:HK$6,280買290 m³/h CADR係痴線。小米差唔多兩倍表現平三倍有多。但Dyson唔係鬥規格——佢鬥設計、用家體驗、同埋風扇功能令到香港天氣成年都用得著。

無葉風扇設計推乾淨空氣橫過成間房,冇傳統風扇嗰種撲面感覺。350°擺動(app度可以調45°到350°)分佈空氣平均過固定位置機。夏天真係有分別——你唔單止清潔緊空氣,你郁緊佢。App顯示實時PM2.5、PM10、VOC、NO2圖表,按粒子大小分類。資料好多有時overwhelm,但想搵污染源頭(例如煮嘢定室外污染)幾有用。

密封式HEPA濾網(換HK$680,用12個月)圓筒形包住底座。活性碳層處理氣味同VOC有效——我喺上環400平方呎單位試過隔離屋煮嘢味滲入牆,20-30分鐘清晒。磁石遙控器擺機頂,小細節睇到Dyson注重用家體驗。

值唔值HK$6,280?除非你重視設計到肯畀200%溢價買功能差過嘅選擇。如果你想要最靚嘅空氣清新機兼夏天當風扇而且使得起Dyson稅,買啦。如果你睇性價比,買Coway或小米袋住差價。

優點

• 頂級工業設計——似傢俬唔似家電
• 兼做無葉風扇香港夏天啱用
• 350°擺動分佈空氣平均過固定機
• 詳細app有粒子大小分類同污染報告
• 密封式HEPA系統換濾芯唔會再污染

缺點

• HK$6,280買290 m³/h CADR貴到離譜
• 覆蓋450平方呎少過同價對手
• 換濾芯HK$680——繼續收premium價

常見問題

香港屋企用邊部空氣清新機最好?

Coway Airmega 300S係大部分香港屋企最好嘅選擇。覆蓋600平方呎(大過一般客廳),328 m³/h CADR應付到污染高峰,自動模式24dB靜到冇聲。雙邊入風處理空氣快過直身機,智能感應器即時反應污染變化——廣東霧霾季或者開放式廚房煮嘢必須。豐澤賣HK$4,280,中價投資,濾芯用12-18個月(換HK$680)。平啲可以買Xiaomi Mi Air Purifier 4 Pro,HK$1,899有500 m³/h CADR,不過要用米家app先用到全部功能。

我香港單位要幾大部空氣清新機?

配對空氣清新機覆蓋面積同你最大嘅開放空間,唔係成個單位面積。香港大部分客廳300-450平方呎,買部450-600平方呎覆蓋嘅機每個鐘換2-3次氣——有效淨化嘅最低要求。睡房(通常100-250平方呎)用細啲嘅機好似Philips AC2887/30(覆蓋430平方呎)夠晒。開放式間隔要大啲覆蓋:Blueair Blue Pure 211+覆蓋650平方呎橫向分佈空氣,啱晒廚房飯廳客廳連埋一齊。唔好買大得滯——600平方呎機擺200平方呎睡房會嘈啲又冇咁有效率過啱size嘅機。

空氣清新機真係應付到香港污染?

應付到,但要有真HEPA濾網同夠CADR值先得。香港污染嚟自幾方面:區域霧霾同車輛嘅PM2.5(2.5微米或以下粒子)、建築灰塵嘅PM10、煮嘢同清潔產品嘅VOC、車輛廢氣嘅NO2。正式HEPA濾網隔到99.97%細至0.3微米粒子,包括PM2.5。我試過污染高峰期(AQI 150+)室內PM2.5由80-100跌到15以下用30-40分鐘。關鍵係CADR配房間大小——200 m³/h機擺600平方呎房換氣唔夠快冇用。污染季(十月至三月)預咗要長開,夏天就間中開。

香港用空氣清新機要幾多錢?

運作成本睇電費同換濾芯。大部分機用6-75W睇風速。香港平均電費(HK$1.30/kWh),24/7自動模式開機(平均25W)電費大約每個月HK$10-12。換濾芯先係大頭:預每年HK$280-680睇型號。Xiaomi Mi Air Pur