As long as I can remember, my apartment has been a sort of silent war zone for myself and my loved ones, with dust, odor, and allergens. Despite my personal best efforts to keep everything spick and span, it is clear that I have been fighting a losing battle with undetectable particles in the air. All these reasons prompted me to put my Xiaomi Smart Air Cleaner 4 Pro to test for 30 days. Economically priced models such as 4 Lite and 4 Compact by this popular brand cost below $100.
First Impressions: Design, Setup, and Smart Features
The design is sleek and contemporary with a minimalist aesthetic and a 360-degree intake fan that can be easily incorporated with any decor. The installation process only required about two minutes via the Mi Home app, which allows one to monitor and control air quality and fan speed, ionization, and scheduling.
It is interesting to note that this app is not merely a complement but a companion app. Functions such as screen brightness and ionizer function control cannot be done without it. Those who purchase this innovative product will thus be part of a broader smart ecosystem created by this technology giant called Xiaomi.
The Results: Dust, Odors, and Allergy Solutions
During this 30-day test period, I put the 4 Pro up against three common home problems: odor, dust, and allergies. Odor Control The cooking smells decreased significantly. The purifier’s PM2.5/PM10 sensors sensed and responded to all changes instantly, and the 3-in-1 activated carbon filter eliminated smells in 30 minutes. Allergy Reduction Being a TÜV Rheinland Allergy Care Certified device, this purifier is especially geared towards targeting micro-particles like pollen and dander. I have found relief in congestion issues in a matter of weeks, which is a claim made by several Xiaomi users, who have found this purifier to be a “life changer for all those with allergies.”
Dust Reduction
Although it did work well to purify airborne dust, it is not entirely necessary because, according to specialists, only what is floating in the air will be trapped by purifiers.
Measuring Performance and Energy Efficiency
The Purifier 4 Pro has a Particle CADR of 500 m³/h, cleaning a 40 m² (430 sq. ft.) area in under 15 minutes. According to independent testing, with all models, including even the smallest 4 Lite, it is proven to increase air quality by 95% in smaller rooms. The 4 Pro’s dual PM2.5/PM10 laser sensor enables it to distinguish between various pollutants such as smoke and pollen.
Its energy usage is remarkably low. Its 33W motor is quietly working with little energy even when it’s used for 24 hours non-stop.
The Drawbacks: Auto Mode and Filter Availability
Despite the intentions of Xiaomi’s Auto Mode to adjust fan speeds constantly, I found it to be a bit passive. At times, it would let air quality deteriorate before doing anything. Using custom schedules through Mi Home App worked much better. However, a more concerning issue presented itself: availability of filters. Many consumers struggle finding a replacement filter for particular models, such as 4 Pro. Without these replacement filters, it would be difficult for consumers to have a functional purifier for extended periods.
An Excellent Product with One Critical Fault
After 30 days, I can say without a doubt that there was a difference in air quality. The air in my home even smelled cleaner, and my allergies have disappeared. The Xiaomi Smart Air Purifier 4 Pro is on par with brands such as Dyson and Coway — but it is cost-effective. However, it is necessary to verify availability of spare filters locally prior to purchase. Without these, even the best offering from Xiaomi is impossible to sustain.
If you have a means where you can source good filters, then without a doubt, one of the best value-for-money air purifiers out there is the Xiaomi Smart Air Purifier 4 Pro.

Emir Bardakçı






