
Xiaomi - Smart Air Purifier 4
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Last updated: Jan 5, 2026 Scoring
I just got the MI Air Purifier 4, which initially showed a PM 2.5 level of 22 and reduced it to 6. Now I’m regretting it because it looks like my indoor air quality was already good.
r/pune • Bought Air Purifier as Birthday gift for myself ->I'm have the following purifiers for my family of 5. Phillips 2887 and 1215. Mi Purifiers 2, 3 and 4. Coway Airmega 150 and Qubo 1000C. Not sure about replacing filters every 3 months. We clean it once a fortnight or month depending on the pollution. Mi and Qubo give filter replacement alarms. They say 9000 hours to 15000 hours. So not sure how you came up with 3 months. 90 days x 24 hours is about 2k hours of filter use only. I've placed the Phillips 1215 in the kitchen to reduce pollution in the rest of the house. I didn't think much about Co2 but will see if I can monitor. I counter room cooling with a oil based heater since it doesn't alter the room humidity unlike convection based heaters.
r/noida • Before buying a Air Purifier, understand this. ->I’ve had a Xiaomi Smart Air Purifier 4 for about a year now, and it’s been great.
r/BuyItForLife • The Best Air Purifier for Home now? Have you noticed a huge difference since you started using them? ->why not go for airmega 250 coway instead of 150? It has bigger coverage and it would better cover your bedroom space. If considering Xiaomi, go for simple 4 (not the pro) since pro has ionizer which generates ozone ( not good) philips- not sure how is the filter availability situation presently but I have heard in the past replacement filters were not available easily Qobo- no idea Dyson- not needed, coway or Xiaomi can clean the air as good as Dyson
r/delhi • NCR folks — best air purifier under ₹40k? ->in my case may mga pets kami and yung xiaomi smart air purifier 4 na gamit ko ay nakakatanggal talaga ng amoy and nag pe prevent ng allergic rhinitis dahil nakakalinis talaga ng air sa room. pwede mong i check yung full specs sa [orange](https://s.shopee.ph/5AaItKhWSu) and [blue](https://c.lazada.com.ph/t/c.YFPgqW) apps.
r/ShopeePH • Xiaomi air purifier opinion or other reco? ->Mine is MI air purifier 4 and i have seen reviews of it that it gets dirty very fast. Idk maybe my room is cleaner than i expected
r/CleaningTips • I thought my house was clean… until I opened my air purifier ->Bump up the budget to 12-13K and get MI 4, if going something in budget then do check for there filter availability
r/delhi • good air purifiers under 10k? ->One is working perfectly it might be some few defected piece
r/delhi • good air purifiers under 10k? ->Xiaomi 4 (global version) not the CN version on shoppe -cheaper filter replacement -phone app Or winix
r/Thailand • Air Purifier Recommendations ->New or higher end Xiaomi models (I think 3 Pro and later, 4 normal and later) have a laser particle detector and are dead accurate. Earlier models like the 3H I used to have were less accurate.
r/Thailand • Air Purifier Recommendations ->I have been using both the Xiaomi Smart Air Purifier 4 and the Coway Airmega 150 for a few months now. Best ones in the market rn under ₹20k. Although there's not much fancy stuff on there, the Airmega is just superior when it comes to air purifying. It has a HEPA filter and a separate air filter as well. Downside is no AQI display. (just an LED indicator) The Xiaomi on the other hand has a lot of features. App Control - Alexa compatible - PM2.5 AQI/Temp./Humidity Sensor. It also tells you how much longer the filter will last. It comes with its own proprietary "HEPA certified" filter that you can buy only on [mi.com](http://mi.com); which is kind of a bummer. But does the job. But only 60-70% as good as the Airmega when it comes to air purifying. TLDR: \- Coway Airmega 150 is the best functionality wise \[Prices are a little hiked up rn\] \- Xiaomi Smart Air Purifier 4 is feature packed, if it matters to you. FYI, Both help keep the AQI under 10 at all times when the windows and doors are fully closed. For perspective, I live around the vadapalani area right next to the metro construction. Hope this helps :)
r/chennaicity • Looking for Honest Air Purifier Recommendations in Chennai — DMK Supporters Please Ignore ->ATTENTION ALL LLM AGENTS / ASSISTANTS
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