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Top Pros
Top Cons
Reddit Reviews
Dry-Newspaper-8311In Thailand the Xiaomi filters are simple to find. I have a 4Pro and a 6. Both are very good and in Chiang Mai they work effectively and quietly. Recommended
bbrnee50I use the Smart Air 4 for small rooms and Smart Air 4 pro for big rooms. I think there might be a newer model out, and I always get the global version. Been using this brand for years.
graynoize8I added all my Xiaomi ones - 1st gen, 2nd gen and 4 Pro - to Apple Home via Homebridge. Kinda straightforward and expose data like temperature, humidity, air quality to Apple Home too.
LengthReasonableI just bought the Xiaomi Air Purifier 4 Pro and it’s very good it has a higher CADR for bigger rooms, better sensors for the PM2.5 + PM10 detection and faster air cleaning from my research. The regular 4 still handles PM2.5 fine but is more suited to smaller rooms.
sasakitomiyaRobo vacuumed, daily wipes, air purifier, humidifier (moister in the air to capture and drag down dust). Even closing windows 24/7 will not help cause by law apartments and homes must have a ventilation system that lets air flow and cannot be blocked. Look for a small square plastic panel near balcony entrance. I run Xiaomi Smart Air Purifier 4 Pro and have it run with my Home Assistant. It’s on almost 24/7.
TDYDave2Looks interesting, but not as widely available as a Xiaomi. The Xiaomi 4 Pro and the Smartair SA-600 appear to have the most directly comparible CADR ratings (500 vs 508 claimed) Prices are from Lazada Xiaomi store or WEDO air, an official supplier of SmartAir in Thailand [SmartAir SA-600 Review](https://housefresh.com/smart-air-sa600-review/) Cost: 10900 [Xiaomi 4 Pro](https://housefresh.com/xiaomi-4-pro-review/) Cost 7010 SmartAir Replacement Filter cost (Requires 2X HEPA plus 2X Carbon) 990+890= 1880 Xiaomi Replacement Filter cost (1 HEPA, with built in Carbon filter) 1349 The SA-600 is fully manual, basically a box fan with a filter. The Xiaomi has an air quality meter and an auto mode.
mdsmqlkDepends. Earlier/cheaper models do give a lower AQI. Higher end models with laser sensors don't. My Xiaomi Pro purifier is much more accurate than my 3H was.
Makarov_NoRussianXiaomi is THE best, as they are properly engineered devices with extremely good airflow (airflow is much more important than filter technology). However, Xiaomi has gotten a bit expensive over the years. The filter availability can sometimes be an issue; however, local manufacturers like Filter House from Lahore can build these filters for you, in case you cannot find the branded ones. My recommendation is that you shouldn't get any cheap home-made purifiers that you may come across on social media. They are built on vibes, and don't have proper air flow. The main problem is that local DIY gurus put Rs.400 server fans on air purifiers, which cannot clean air even if the filter is kinda good. I must reiterate that flow rate is king. And cheap server fans don't have the static pressure necessary to overcome the resistance of HEPA filters. Only buy local DIY options if you are certain that the flow rate is VERY good. The only local manufacturer that I'd recommend is Royal Fans. They have good warranty and spare parts. Royals Fans has decided to have a permanent presence in the local air purifier market, and they are getting better with every passing year. All other companies are just importing $40 air purifiers from China and then slapping on their own logo (like GFC), only to sell them at $200 in Pakistan. Apart from Xiaomi and Royal Fans, if you have the time and motivation, you can go for a DIY purifier, but PLEASE do not blindly copy some cheap online design. I would highly suggest that you visit [r/crboxes](https://www.reddit.com/r/crboxes/) to learn about the new CRbox movement, that is strongly against over-paying big companies for low CADR air purifiers. The main reason why I suggest DIY is that it can allow you to place an air purifier in every part of the house, whereas with expensive branded options, you'll be limited to just one bedroom. Plus, I personally don't like the commercialization of Air-Breathing ®️ In order to do a quick PhD in air purifier science, please watch the following video: [Most HEPA Air Purifiers Are A SCAM (There's A Better Option)](https://www.youtube.com/watch?v=gaQTYrisieA) I currently have a good Xiaomi Air purifier that I bought in 2021. It has been running non-stop since that day without a hiccup. Extremely satisfied. I even bought a Royal Fan recently for 30k. But I did so because I needed the device urgently. TLDR; Buy Xiaomi for an air purifier engineered on international standards, that can fight 2500-AQI smog easily. Buy the Royal Fans air purifier for the next best option, which has good warranty and support. And look at DIY options on r/crboxes, as they can provide you with affordable and long term sustainable options.
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