WINIX U300 Air Purifier with True HEPA and active Carbon filter, PlasmaWave for allergies, smokers, dust, odour reduction, silent, up to 66 sqm

For the money (£255) I think it is a good value considering its CADR (Smoke / Dust / Pollen 291 / 298 / 343).It is quiet on the two first level, not so with the two others.The remote control works well. The air purifier is bulky but light enough to lift it easily. Its build quality is correct (all plastic) but it certainly does not have the same quality feel than a steel made Blueair 450 I also own (which costs £200 more). Its quality is more like the Fellowes air purifiers, maybe even a bit less because its front panel is flimsy when touching it.The all in one filter (£62) can be washed and is supposed to be replaced every year. I think this is a maximum. The Blueair has a HEPA filter needing to be replaced every 6 months but in practice I change it every 4 months because it gets dirty despite the fact we have no pet, the house is new, well cleaned but we live in London. All my air purifiers are on 24h a day, 7 days a week.I posted some photos of it next to the Blueair 450 and next to a 55 inch TV so you can get an idea of its size.

I spent some time researching for a good purifier, I found the Winix U450 meets my requirement.It has an automatic sensor and works well and it will reduces the speed at night time and very quiet as well, the item looks a little bit big but it is not very heavy to move it around in my house.I have used it round the clock which seems very effectives and works well for the dust allergies and hay-fever.A vey good air purifier and you only need to replace the filter once a year.

I've had quite a few air purifiers over the years and never been totally happy with them because of noise or poorly designed meaning fiddly cleaning and dust build up inside the unit that you couldn't reach to clean out.I spent time researching which to get, my previous, a fellowes which was loud, rattling and vibrating and didn't do much for allergies and did nothing to reduce dust and so loud couldn't be used at night.This one however meets nearly all my high expectations.It noticeably reduces dust on surfaces and I unfortunately live in a very dusty place. I also have two small dogs which are moderate shedders all year round.I have included a photo of the pre-filter which after only two weeks is covered in dust and dog hair. This filter you can vacuum whenever you want.On low it is very quiet and even medium is acceptable to use all day, the higher settings are of course fairly loud but actually quite a pleasant white noise and drowns out unwanted background noise.When it gets dark it reduces the speed lower than the quiet setting and is literally silent especially if you turn off the plasma feature which makes a small noise of its own.I prefer to manually set it to low at night as its inbuilt night mode doesn't do much allergy wise.The CADR ratings only apply to its highest setting as it is with all air purifiers so even though this is in my 15.5ft x 11.4 ft bedroom I went for this larger size for better results even on a lower setting.The unit itself is rather large and really needs to be located fairly centrally in a room to pick everything up. It doesn't seem to be very accurate on auto mode to detect smells etc and speed up if it's running at low speed. I tend to keep it on medium most of the day because of this. This is one of its small downsides.Overall though I'm quite happy with it.*Edit* Two years on , just outside of the warranty and the fan has become rattly and noisier and the ar flow has become severely reduced. There's no way to open it up to clean the fan. The filter replacements have also increased by £25! So I'm now looking for a replacement.

Works great, had this running sincewe got it.Cleans the air well no inonising smell like u get with some of them. Less dust in the air.Leave it running in auto is very quiet when on the low setting. Gets louder on the higher setting.But this only happends when the air quality is poor. Am a bit conserened regarding replacment filters. They are extreamly expensive ..

This is a powerful air purifier it’s well made durable and easy to wipe over to clean, it works well on medium setting but can be noisy on high not a setting we used when sat in the same room, it clears smells quickly on high then I turn it down,not changed the filter yet as I’ve not had it long enough but I’m happy with it at the moment

Purchased this after reading a lot of reviews. It's does a reasonable job and the turbo function works well. However, the light sensor does not work so when you leave it running at night it gives off a very bright light which is annoying. The air sensor seems to work, with the fan speed increasing when the sensor determines that the air quality has reduced. However, I'm not sure how accurate an of these sensors are in picking up the damaging PM 2.5 particles that are most hazardous.The product is surprisingly light which only feeds the impression that the build quality isn't great (this seems to be supported by the faulty light sensor)Overall it works OK but there may be better filters out there for the money

Brilliant machine! It works flawlessly.It has helped a lot reducing the amount of pollen in the air (Hay-fever veteran here) and with odour from the cat litter.The sensor is smart and the unit is powerful when needed but quiet during the nights.We have been using it every day and it runs smoothly.One of the best purchases ever.

Literally none of the claimed features work, the lights do not dim and it doesn't go into quiet mode when the lights are out. Auto mode stays in silent mode, even when the air quality reads poor it does not increase the speed as claimed. Controller is terrible, basically have 2 stand up & point directly at receiver or it doesn't work.