Philips Smart Air Purifier Ac1711 - Purifies Rooms Up To 36 M² - Removes 99.97% Of Pollen,Allergies Dust And, Hepa Filter, Ideal For Bedrooms. -

This is a very good product.. value for money... Very silent in night, No disturbance Brings down the AQI to 5 in a closed room...

Have been using the product since the last 15 days. It works like a charm. Cleans the air perfectly well. During Diwali when the outside reading of PM 10 was above 1000 and PM 2.5 was around 700, the purifier took 15-20 minutes to turn the air quality of my closed bedroom (12x12 feet) from very dirty (red) to dirty (reddish violet). It took around 1.5 hours to turn to blue (safest level of the air sensor). However, 4/5 days post Diwali, when the pollution level had subsided, the air purifier cleaned the air (red to blue) within 15 minutes. The air quality sensor does a good job. The look and finish of the product is wonderful. Before using the product, do take the cover off the filters. But I have couple of problems with the device for which I have deducted 1 star: A) The night sense mode gets turned on as soon as you switch off the lights (even during daytime with curtains closed) and the auto mode cannot be used along with night sense. Thus, you have to either manually switch on the fan at a particular speed, which is counter intuitive or be ready for a switched off performance after the lights are switched off. B) The filters are not readily available. I even enquired at markets in Delhi and was informed that the set of filters would be available after a week as the company is unable to fulfill orders. Further, the set of filter costs about Rs. 4000. Even though I don't need one currently, the air purifier would have a recurring cost of Rs. 4000 every year.

Good product

It really works great. It's quiet at night, and it's super easy to open and clean.

I own other products from Philips and quite simply love them. But this Air Purifier, or should I say the Filters, are an EPIC FAIL. If, like me, you are buying this air purifier to remedy musty air/mold/mildew (which it indeed promises to do on the package and does for a while), only to turn into a harvesting ground for more fungal growth, you better avoid this air purifier. I wasted Rs. 9000 without a convincing remedy to my problem. You don't have to do the same. As is evident from my own experiences and some other reviewers, it is ABSOLUTELY NOT EFFECTIVE against mold, mildew, and any fungal growth. It might do well in a drier environment, but absolutely not in even a mildly humid environment. I bought this air purifier particularly to battle the musty air in my room; the outside air, too, is polluted here, but not as much as the bigger metros. At first, this air purifier delivered. A breath of nice fresh air... But, within 3 months, it reeked a horrible musty odour making it almost impossible to breathe, as the purifier was sitting right besides me in my study. After I couldn't take the difficulty in breathing anymore, I removed all the filters, and to my surprise, the Activated Carbon Filter had a nice thick green layer of fungal growth all over it. After smelling the purifier out some more (yeah, I did not have much of an option), I realized the actual fan inside the purifier too gave out the same stench, and it doesn't really has any facility to detach. I wiped the fungal growth with a wipe from the carbon filter. But, the carbon pellets inside the filter kept on stinking. So, I tried drying the carbon filter in the sun, but realized after a day that the carbon pellets/balls whatever you wanna call them, quickly evaporate in the sun. Later, I tried keeping the filter outside to catch the wind for a few days, but that didn't make much of a difference in the smell reeking through it either. I can't wash the filter, since it's been clearly specified on the filter not to do so. (I don't wish to damage the filter in one go.) So, basically, I have just one option - Change the filter (within 3 months).... And this part ticks me off - Combined, the 2 filters cost as much as the air purifier. So, if the 2 combined filters cost Rs.~4400, and the company is offering them to you for free with the air purifier the first time around, then the air purifier costs just Rs. 4500, because hey, nothing is really free! Well played Philips, you have a very profitable long-term money-making scheme right there. Well played.

A very good and almost silent air purifier. It works well for a 18ft x 12ft bed room effectively. It's super silent especially during nights. Brings down pm2.5 from 250 to 50 in less than a minutes time. Been using it close to a month. A good product so far.

Loved it, trusted brand and excellent quality!