Philips Air Purifier 900 Series, HEPA NanoProtect + Activated Carbon Filter, CADR 250 m³/h for 65 m² Allergy Sufferers, Quiet, Intelligent and Energy Efficient (AC0951/13)

Very happy with this air-purifier so far. We moved homes and wanted an in-expensive yet effective purifier to improve air quality after painting, adding new furniture etc to decrease the exposure to VOC in the air. It’s a good size and looks stylish. The night mode is great and very silent you can’t really even notice that with the light switched off. I leave it on an automatic setting which adjust the speed of the fan automatically. Like the fact it shows the level of pollution in real time with number and colour. Air in our new home seems to be to my surprise a good quality as it’s in blue zone with very low number most of the time - you are almost thinking if it’s even doing something but do a bit of cooking or blow off a candle and within a minute the machine picks up on it and starts to purify on higher speed as you can see the colour and number has changed. It even picked up on having a new washing machine running a cycle for the first time when you could smell the typical new appliance smell coming out of it. I find that it’s effective in purifying the room quickly back to the blue zone. We got two of those one for living room and one for bedroom. Good price per performance

Brilliant piece of kit - not bought for any specific reason but it really does purify the air in a short space of time. Cooking smells dont exist beyond the kitchen door and smokiness from cigarettes or burned food doesnt get the chance to cling to your clothes. My son developed an allergy to his cat that he has had since aged 9 (hes 25 now!) and it seems to have helped with pet dander too because hes not snorting and sneezing like before Much larger than expected - a bit larger than a medium pedal bin and a handle to help move it when necessary wouldve been useful Can be noisy when purifying but on auto setting the fan reduces once the air purity reaches fair. Needs to be connected to wifi to work and the Air+ app - mine connected first time but took around an hour before the air purifier updated in the app so do give it some time. Once the app is connected setup is straight-forward and app allows you to set schedules and give air quality readings for the purifier but also for the local area! Also Philips have issues in stocking replacement filters and have had for months so may need to buy generic brand instead and hope it works as well. Filter is estimated to last 12 months and needs to be vacuumed monthly depending in usage.

I picked this up in the sales for what I believed to be a bargain price. I have since read that this is because the item is now discontinued. While that might not seem to matter, my worry is; Will they still make genuine replacement filters for them? Currently, Philips sell genuine hepa replacement filters for around £40. Each filter lasts up to a year, depending on usage 3rd party filters don't seem to be up to the job The machine itself is brilliant. Works just as advertised. It reduces smells (great for cooking smells and farting animals, including husbands) and blows out clean, fresh air after going through the hepa filter The noise can be reduced through the sleep mode option, but I kinda like the noise it makes... it's almost like a white noise machine Appearance wise, it looks like a dalek (great if your a Dr.Who fan) TLDR; This really is a brilliant machine. Does exactly what it says it will. Great value in the sales. I just worry wether the filters will be available to purchase when needed in 12 months

We brought this for our bedroom after getting a larger unit for downstairs. It's just the right size to not be too intrusive but extremely effective at cycling the air in the room quickly. It's really surprising when you take the filter out to hoover it (as part of normal maintenance) and you see how much it does capture. Noise wise it's fine in auto mode. Turbo/ medium you will obviously hear it but sleep mode is fantastic. The air quality on our house has risen significantly since we got these, we can't recommend them enough. On offer is excellent value for money and are good quality units. Would absolutely recommend.

I'm currently in a high humidity environment. Humidity in the home is well above the recommended 50% to 60% and doing nothing can mean itchy eyes , itchy scalp, mold and allergies. I've spent hours researching air purifiers, dehumidifiers and humidity, and re. the air purifier I went for the Philips AC0820/30. I want to thank Amazon too. I bought 3 and 2 of them were from Amazon Warehouse and the actual condition of the items (not boxes) was totally new. First, this "older version" AC0820/30 does the job with no problems in areas up to 49m2. The newer version (the one I don't have) is recommended for 65 m² and comes with a filter with an Activated Carbon layer (for smells). BUT if your area is no more than 49m2 not that both come with the HEPA NanoProtect layer and the replacement filters are the same for both versions, so you can buy a filter with the Activated Carbon layer if you want this for the older version too. This AC0820/30 has no Bluetooth connectivity and only 3 settings but quite honestly it is much cheaper, purifies the air, and you don't need to control it with your phone. Basically when it arrives, you take the filter out the bottom and take it out of its packaging (don't just turn it on) and then put it back in, turn it on and leave it. When you switch it on it starts in automatic mode and switches between Good (blue), Fair, Poor and Very Poor fan speeds drawing in air for air quality. It purifies 20m2 in 16 mins and 49m2 in 38 mins. Once the air is clean, the purifier runs for me 99% of the time in blue at a quiet hum continuing to keep the air clean at only 2.5 W (yes 2.5!) so no issue running it all day. Pressing the button again puts the fan at top speed (turbo mode) which runs at 18.5 W. Pressing it again turns the fan into sleep mode which forces the purifier to run at the lowest fan speed of 2.5 W regardless of air quality. The pre-filter layer traps dust mites and pet hair and the filter's main HEPA NanoProtect layer sucks in the fine particles like pollen, air pollution (pm2.5), bacteria, viruses, pet dander and - yes - mold spores. The optional Activated Carbon extra layer in future replacement filters is only for absorbing smells and odors, such as from food, cigarettes, pets, indoor waste and Volatile Organic Compounds (VOCs). The purifier has a built in clock/timer that works out when the filter needs changing based on the fan speed and length of time running. The warning light will appear on the top display when the filter needs changing. Ignoring the light over time will apparently lock the device (which makes no sense to me since it just means the air is not cleaning and the light tells you that). However, at any time you can long press the button on the top for 3 seconds and the warning filter light will flicker a few times to tell you the internal counter has been reset. This is what you do when you replace the filter, but you can do it any time (before the warning light appears) too so you have full control of filter replacement. You can take it out, clean it, or replace it before the warning (for one with an Active Carbon layer for example) or after the warning, reset it and use the same filter a little longer. That's all it does and all you need it to do - so I'm well happy. Replacement filters are around £30/€30 for 2 with Active Carbon and HEPA filtration and cheaper without the Active Carbon and it is recommended they should be replaced at minimum every 6 months. So does it work? Well, with humidity here in the range of 70% to 85% (mold spore heaven) no mold is forming! (dehumidifier on the way). That means that while a dehumidifier stops mold from growing in the first place, this air purifier is perfectly capable of removing the mold spores floating around. I don't have pets or allergies or cigarette smoke in the house so I can't comment on the other reasons and ways people might evaluate its effectiveness (so I'd read other reviews for that) but if it removes 99.5% of particles as small as 0.003 microns (µm) which is smaller than any known virus on planet Earth, and - much more importantly - I don't have to worry about mold; I'd recommend cause very happy.

Great air purifier. Slightly bigger than I thought so had to find a place that would make the most of having it on. It’s currently place between our kitchen and living room. Having hard floors and 3 dogs means that there is always a lot of dust in the air and this machine does a brilliant job of clearing some of the dust out of the air. When cooking it kicks in and filters the air to get rid of anything it deems to affect the air quality. (Very clever) I keep it on automatic and let it run if it own doing but it can be turned on to run continuously if needed. I also use the timer mode first thing in the morning to clear the air as my partner suffers from asthma and she seems to think that it’s helping. There’s an app that can be used to monitor the air quality and also the life expectancy of the air filter and when it will need cleaning. Also on the app you can set timers for when you get up so the air filter works if you want a clean before jumping outta bed. Overall very happy with the machine and the price we paid.

This excellent for anyone who smokes or vapes. The purifier really picks it up quickly and kicks in. I run it in Automatic 24/7 and I'm really impressed how long the filter last before requiring cleaning. I would say it's not any louder than a kettle when running at maximum speed. My only regret was not investing one sooner. My good lady often frounds at the tech is I buy, however, she has also bought one .

It appears to work well, I've not yet checked the filter to see how much it's taken out of the air. Runs quiet but my wife finds light a bit too bright.