清迈空气净化器怎么选:房间大小与滤网指南

按房间大小买净化器,不要按品牌买。烧山季要选烟尘CADR至少等于房间面积(平方英尺)的机型。确认它配有HEPA滤网,并且不产生臭氧。预算紧张的话,用箱式风扇加MERV 13滤网也够用。

阅读英文版 (Read this guide in English)

本页目录
  1. 按房间大小选净化器
  2. 包装盒上还要看什么
  3. 更省钱的办法:箱式风扇加滤网
  4. HomePro的价格和型号
  5. 还可以去哪里看:商场
  6. 常见问题

按房间大小选,不要按品牌选。先量出房间地面面积(平方英尺,1平方米略少于11平方英尺),再买烟尘CADR至少等于这个数的净化器。EPA的图表可以随手对照:300平方英尺的房间,CADR至少要195。

按房间大小选净化器

CADR是洁净空气输出率:表示机器送出多少过滤后的空气,对烟草烟雾、花粉和粉尘分别打分。数值越高,去除的颗粒物越多,能覆盖的房间越大。要算出你的数字,把房间的长乘以宽,再和包装盒上标的最大房间面积对比。

烧山季建议按严格标准来。通用标准是CADR至少为房间面积的三分之二,但针对野火烟雾,建议是烟尘CADR等于房间面积(平方英尺)。

天花板高,算法就不一样了。图表按8英尺层高计算,层高更高就要选更大的机型。开放式户型要把机器需要覆盖的整个空间算进去,或者用多台机器。

美国EPA网页截图,配有一张选型表,把房间面积(平方英尺)和最低CADR(cfm)对应起来。
EPA的颗粒物选型表。 来源: US EPA, Guide to Air Cleaners in the Home (在新标签页中打开), 截图于 2026年10月13日

包装盒上还要看什么

看什么 找什么
烟尘CADR 烟草烟雾一项高分,它代表最小的颗粒物
滤网类型 HEPA,这是大多数机型达到高CADR的方式
气体 活性炭滤网,因为CADR只涵盖颗粒物
臭氧 凡故意产生臭氧的机型都跳过;加州空气资源委员会和AHAM都有低臭氧机型名单
认证标志 AHAM Verifide标志,通常在包装盒侧面或背面
替换滤网 一般每60到90天更换;非原厂滤网可能达不到原装性能

运行方式也要对。风速低时净化的空气更少,而包装盒上的CADR通常是在最高风速下测的。让机器远离窗帘和任何挡住气流的东西。

别指望泰国的PM2.5标志能帮上忙。现行的泰国空气净化器标准只管用电安全,不管除尘效果,所以还是对比包装盒上的CADR吧。

雾霾天里,净化器只是多种手段之一。可以看看清迈PM2.5与空气质量指数怎么看和烧山季指南。

更省钱的办法:箱式风扇加滤网

如果买不起市售净化器,就用胶带把MERV 13滤网贴在箱式风扇上。这是削减烟雾的省钱办法,再加一个纸板围挡,CADR能免费提升40%。

有两点要注意。滤网脏了,这种自制净化器几乎完全失效,所以多备几片。另外只用较新的、带安全功能的认证箱式风扇,2012年款或更新的。烟雾严重时,成品净化器可能很难买到,也很贵,所以自制的一台是不错的备用。

HomePro的价格和型号

可以先从全国连锁的HomePro看起,它在清迈的门店HomePro Ruamchok就在Kad Ruam Chok对面。逛店前可以先看看它的网店,对价格有个大致概念。下面这些都是卖家自己标的数字,不是排名。

型号 卖家标注的房间面积 价格
WORLDTECH WT-P40 40 m² 1,390泰铢
HITACHI EP-TZ50WO 48 m² 3,590泰铢
XIAOMI Purifier 6 50 m² 6,990泰铢
SAMSUNG AX32BG3100GBST 41 m² 6,990泰铢
LG AS65GDBY0.ABAE 61.2 m² 19,900泰铢

卖家只标房间面积(平方米),不标CADR,所以决定前要先看包装盒上的CADR。滤网也要算进预算:Blueair Blue Pure 211颗粒物滤网大约3,000泰铢。

还可以去哪里看:商场

Central Chiangmai和MAYA是两家值得知道的大型商场。Central正在旗下商场打造“Safe Indoor Spaces”,配备HEPA滤网和实时PM2.5监测。MAYA在Huay Kaew路,营业时间10:00–22:00。

电话 053 998 999

Central Chiangmai商场正面,浅色外墙上有一块大字招牌,天空湛蓝。
从停车场一侧看Central Chiangmai大楼。
Central Chiangmai
99,99/1, 99/2 หมู่ ที่ 4 Lampang - Chiang Mai Superhighway, Nong Pa Khrang, Mueang Chiang Mai District, Chiang Mai 50000, Thailand · 在 Google 地图中打开 (在新标签页中打开)

在谷歌地图中打开 (在新标签页中打开)

MAYA购物中心的格纹外墙,入口处有一棵装饰树和一块大屏幕。
MAYA Lifestyle Shopping Center的入口一侧。
MAYA Lifestyle Shopping Center
55/5 Huay Kaew Rd, Chang Phueak, Mueang Chiang Mai District, Chiang Mai 50300, Thailand · 在 Google 地图中打开 (在新标签页中打开)

在谷歌地图中打开 (在新标签页中打开)

图片 (2)
  • RealReviews
  • 민화수영

↑ 本页目录

英文指南中的图表

图表中的文字为英文。

Minimum CADR for a room, EPA estimate Based on an 8-foot ceiling; higher ceilings need more Room of 100 square feet CADR 65 cfm Room of 200 square feet CADR 130 cfm Room of 300 square feet CADR 195 cfm Room of 400 square feet CADR 260 cfm Room of 500 square feet CADR 325 cfm Room of 600 square feet CADR 390 cfm ChiangMaiJao.com · Source: US EPA, Guide to Air Cleaners in the Home, sizing chart for particle removal Verified 13 Oct 2026 · Re-checked every 6 months Minimum CADR for a room, EPA estimate Based on an 8-foot ceiling; higher ceilings need more Room of 100 square feet CADR 65 cfm Room of 200 square feet CADR 130 cfm Room of 300 square feet CADR 195 cfm Room of 400 square feet CADR 260 cfm Room of 500 square feet CADR 325 cfm Room of 600 square feet CADR 390 cfm ChiangMaiJao.com · Source: US EPA, Guide to Air Cleaners in the Home, sizing chart for particle removal Verified 13 Oct 2026 · Re-checked every 6 months
EPA's minimum CADR for six room sizes.
放大图表

未确认: 卖家标的房间面积(平方米)不是CADR,买之前请看清包装盒上的CADR。

评论 (10)

  1. CriticalResearchBear

    My first burning season, need air purifier tips I work from home so I sit in a closed room with the Xiaomi Air Purifier my landlord left here. However I still get lightheaded and headaches so I wear a mask even inside with the purifier. I think a better option is to get a high quality air purifier. There's plenty on the market but sustainability is important. No point buying an expensive air purifier if getting replacement filters is difficult. Can anyone recommend a purifier? PS: I work from home but my wife does not so picking up and leaving temporarily is not an option.

  2. Low_Assumption_8476

    A store. Central/Robinson, Electronics stores, Big C, Home Pro, Lazada. Bruv?

查看全部 10 条评论
  1. Low_Assumption_8476

    Master List: Restaurants/Cafes that you know run air purifiers. I thought people would like to know for the upcoming months (I know I would), so please name some places that run air purifiers during business hours. I'll start and then add your responses to this list later for ease of reference. -Good Souls -The Vegano Bistro

    5 条回复
    1. YouAccomplished9357

      If you look up Air Developpa, they have an app that shows real-time air quality in various restaurants and other locations.

    2. ImJustStocks

      I know it’s not local, but Starbucks at the east gate has 2 floors with multiple air purifiers. It provided some respite last burning season. Also Free Bird Cafe has a separate conservatory-like enclosed space which also had air purifiers in 👍

    3. Low_Assumption_8476

      After visiting 10 cafes/restos that cater to locals and foreigners all over the city in the past month, only 2 had any sign of air filters despite many days being 100+ AQI in that specific area of CM. Moreover, the huge amount of places that are 100% open-air makes the argument that most places have air purifier complete nonsense.

    4. ThreeQueensReading

      Goodsouls Kitchen. I've been there for breakfast the last two days and they had one industrial purifier on the bottom floor and two on the top floor.

    5. freshairproject

      I have a PM 2.5 measuring device and you’d be surprised how many places with air purifiers have bad air. The air developpa app is a nice start but only shows like 5% of the places that have air purifiers and most of them even with air purifiers have unhealthy air. IIRC only punspace was in the green the entire time, but I’m not going to bring my toddler there. Many shops with air purifiers only put it on the quiet (A) setting vs max. Btw, the best bang for the buck air purifier, as in nothing comes even close, is the standard round xiaomi air filter + 6” inline vent fan.

  2. sbayz92

    Best place in town to buy hepa air purifier? Hi all, would Homepro be the best place to buy an air purifier? I’m looking to buy a cheap small one ideally that I can check on my flight back to Bangkok. I’m in Chiang mai/Bangkok for the next month and I want something while here.

    1. freshairproject

      I think the restaurant Food4Thought has air purifiers in stock made by a local CM company, uses the same round HEPA filter as Xiaomi

常见问题

什么是CADR?

它是净化器送出的过滤空气量,对烟草烟雾、花粉和粉尘分别打分。数值越高,净化的空气越多,能覆盖的房间也越大。

怎么按房间大小选净化器?

把房间的长乘以宽,以平方英尺为单位,再和包装盒上标的最大房间面积对比。

烧山季该按哪条规则选?

通用规则是CADR至少为房间面积的三分之二。针对野火烟雾,更严格的标准是烟尘CADR等于房间面积(平方英尺)。请按严格的那条来。

平方米怎么换算?

1平方米略少于11平方英尺,把面积乘以这个数,再按平方英尺去查图表或套用规则。

在清迈哪里能买到?

最省事的是HomePro,它在清迈的门店是HomePro Ruamchok。买之前看清包装盒上的CADR。

需要HEPA滤网吗?

需要,这是大多数机型达到高CADR的常规做法。

臭氧净化器有用吗?

没有。凡是故意产生臭氧的机型都要避开,因为臭氧会刺激肺部。

滤网多久换一次?

厂家一般建议每60到90天更换一次,如果看起来积灰严重就提前换。

净化器能去除气体吗?

CADR只衡量颗粒物,如果担心气体,请选带活性炭滤网的机型。

自制净化器好用吗?

箱式风扇加MERV 13滤网是削减烟雾的省钱办法。要用新的滤网,因为滤网脏了几乎完全失效。

本文是依据上述来源核实的一般信息,不构成针对你个人情况的法律意见。价格、规定和营业时间可能变化,请到现场再确认一次。指南的核实方式见: How we check (英文)。

发现错误? 请告知编辑。