Philips AC4221 Smart Air Purifier for Home, Ideal for Living Room, Metallic

Its a genuinely great air purifier. My breating improved vastly and it covers a large area to purify the air. Its smart features are great to use, mainly its connection to the phone via Air+ app. You can switch it on and control it through your phone. The price is also great as compared to dyson etc. Its quite silent amd we can have a peaceful sleep. Looks very modern too.

I have used air purifier from another high-end brand which is twice its price, but I prefer this one mainly because - economical yet highly effective - more convenient to carry around - makes lesser noise even at its highest fan speed

Product is nice, very silent in operation. Quality good. Till far everything looks good, will update after 3 months of usage

Auto mode and other slow modes just filter air in and around the purifier. If you want results - even in a small room, put it in turbo mode for 30 mins and then maybe bring it down to auto mode. Air purifier does work. My kids allergic reaction to dust and morning colds have reduced significantly. There is quite a bit of sound on turbo mode. The key metrics when choosing air purifier is how much volume of air it's able to recirculate in a time frame.

The air purifier is amazing — it easily detects current PM levels and automatically adjusts the cleaning mode. The app connectivity makes it even smarter and more efficient for maintaining clean air. Solid build quality too. Definitely worth trying!

It's hard to breath around considering the air quality in East Delhi. Thanks to my childhood friend - Rishi who suggested me to buy this Air purifier which has changed my life manifold times. As my parents are aging, I always wanted to gift them something of need that adds value to their health and life. When we added this purifier for the first time - it gave AQI of 300 which later purified up to 50. Now, when we switch it on - it starts with 100 -150. Thats the change that made us surprised which we never imagined . Good product, totally recommended

We were skeptical, but it does help a lot with morning sniffles. Makes a difference even when windows are open if it's close to you. Virtually noiseless.

Absolutely impressed with this air purifier! It noticeably improves indoor air quality, runs quietly, and the real-time AQI display is very useful. The Philips Air+ app makes it even better by allowing remote control, air quality monitoring, and filter status updates from anywhere. Setup was quick, and the purifier has been reliable and easy to use. Highly recommended!