– Blueair Blue 511i Max Smart WiFi Air Purifier, HEPASilent Dual Filtration Up To 105.7m², Whisper Quiet, Air Cleaner for Pets, Allergies, Virus, Dust, Mould, Smoke

We got this for the bedroom and it has made a huge difference to the air quality. It is a very compact machine, so it doesn't take up much space, and the fabric pre-filter actually looks quite nice in the room rather than looking like an ugly piece of medical equipment. The performance is fantastic. It clears up dust, pollen, and pet dander quickly, and the smart WiFi features are brilliant. The app lets you see your real-time air quality, tracks trends over time, and lets you control it from your phone without getting out of bed. On its lowest setting, it is completely silent, making it perfect to leave running overnight while you sleep. It does get a bit loud on the maximum setting when it detects a spike in pollution (like cooking smoke), but it clears the air so fast it rarely needs to run on high for long. If you want a smart, fuss-free purifier for a bedroom or a smaller living space, this is easily one of the best on the market. Great little machine.

Easily one of my best purchases of 2025. After using it for a short time, it genuinely makes you wonder how you ever lived without an air purifier. The air quality improvement is noticeable, especially in a bedroom environment. The room feels fresher and less stuffy, and it has helped significantly with dust and general air cleanliness. The app functionality is excellent, simple to set up, responsive, and useful for monitoring air quality and adjusting settings remotely. The unit itself is fairly large, but this clearly comes down to the size of the filter, which inspires confidence rather than being a negative. It feels well built and designed to handle larger rooms properly rather than being underpowered. Noise levels are impressively low. Even when running continuously overnight, it is quiet enough not to disturb sleep, which was a major deciding factor for me. Overall, a very effective, well designed air purifier that delivers exactly what it promises. Highly recommended for anyone considering improving their indoor air quality.

This product would be worthy of a five star rating if it were not for the fact that the most important mode in my opinion, the night time mode, does not seem to have a provision for turning off the led lights completely. More on this later. The unit works straight out of the box, simple to set up, connect and control using the smart phone app. I would describe the build quality as very good if not impressive. After using this device for over a week now I am convinced that its filtering performance is having a significant effect on my particular issue namely allergic nasal congestion. I purchased the unit for use in the bedroom and can confirm that when running in the auto and night time settings it is barely audible, sleeping with the unit running all night has certainly not been an issue except for the led issue in night time mode. Regarding the price, there are other units out there which are cheaper but first check stated performance and noise levels and the cost of replacement filters. I carried out these checks and the Blue Air came out ahead. So, value for money I have to say is good. You get what you pay for. Regarding support services the support provided so far by Blue Air has been second to none, and my query was dealt with quickly and accurately. Now back to my one and only grievance with this unit. I bought this item for overnight use in the bedroom and was surprised to find that the only mode which does not allow full control of the led indicator lights is the night time mode. In all other modes the leds can be dimmed down to off, but not in night time mode. When in night time mode, the leds are automatically dimmed but are sill too bright for my bedroom. If you live on a main road or built in a up area with street lighting it may be satisfactory but for me living in a rural area it is not acceptable. Therefor I have to run the unit overnight in auto mode which allows me to turn off the leds. The solution would seem to be a relatively simple software adjustment to bring the night time mode into line with all the other settings and control functions. This change would qualify the unit for a five star rating, from me anyway.

Our second purchase of this model. Looks good. The app is easy to use. It's on in the bedroom all night, every night, and the first one we had lasted a few years. The air feels cleaner and according to the app the air is consistently 'excellent'. It's quiet on fan speed 1, some might find it a bit loud on fan speed 2 but you get used to the sound. Definitely helps with hayfever symptoms resulting in a better quality of sleep. Also good for removing cat dander from the air. The genuine filters are a bit pricy but they last a long time.

If like me you have allergies and asthma, or just want cleaner air, then this device is a must. Love my air filter. I’ve been using this constantly every night in my bedroom to reduce pollen and dust for my allergies. It works a treat and I’ve noticed a big difference in my breathing and also there’s less dust in the room when it’s time to clean. It sits quietly near my bed, automatically works every night and just works! Exactly what I need. After 6 months of use, the device reports that it still has 63% filter still in use so I’d say that you need a new filter maybe once a year, for normal domestic use- which is good economically speaking. Download the app which gives total control and this is where you can setup automated scheduling. When in ‘Auto’ mode it kicks into high fan speed on high filtration if I do something that would generate high dust particulate pollution in the air, like changing bed sheets or fluffing up the pillows. This to me, proves that the device sensors work well and adjust the airflow and filtration according to the quality of the air being sucked in. We are so impressed, we bought two. This model has relatively cheap replacement filters that are readily available. I definitely recommend this air filter.

I’ve used for a few moths now, it’s very quiet, looks smart and does its job. I suffer heyfever and find this to be very effective. I also like the app, very easy to use . Great job

This is such a nice upgrade for my home and I only wish I had bought one years ago. Amazingly, if I apply aerosol deodorant in the bedroom, not long after that the machine detects the pollutants in the lounge and automatically speeds up until the air is clear again. I sleep much better and do not sniffle or cough in the morning, even though my dog sleeps right next to me! The app control is a lovely feature too.

It appears to work as per all the claims. I put it in the main bedroom because the house is 1900’s with a wooden floor and I was convinced that dust was coming up from the floor. The unit quickly told me that the air quality was great and there were no issues. The only time it moves to mid speed is when sorting laundry or changing the bed (cotton lint dust) so I know it works. The app is a good way to visualise the use and auto mode takes care of things. I’ve struggled to get the top indicator lights to dim completely at night which is a pain - and I’m kinda disappointed that it finds little issue in the room so I’m not really benefiting from the unit.

I’m extremely satisfied with this air purifier in every aspect. The biggest advantage for me is how quiet it is — even in Auto mode it is practically inaudible, and at night it does not disturb sleep at all. This was my top priority, and this model delivers perfectly. Air quality improves very quickly. According to the built-in sensor and the app, PM2.5 drops to near zero and stays there consistently. I placed it in a large living area, and it easily keeps the air clean not only in that room but also helps adjacent rooms when doors are open and air is circulating. The design is clean and modern, it doesn’t look like a typical appliance and fits nicely into the interior. Setup was simple, the app connection was fast, and the automatic mode works exactly as expected — it adjusts only when needed and otherwise stays very quiet. Filters are easy to replace, and maintenance is basically “replace and forget,” which is exactly what I wanted. If you care about low noise, strong performance, and stable automatic operation, this is an excellent choice. Highly recommended, especially for people sensitive to noise or with allergies.

Great product in my opinion and brand too. The improvement in air quality is immediately noticeable, especially in the bedroom. The room feels fresher, less stuffy, and there’s a clear reduction in dust. The app is easy to set up, responsive, and useful for monitoring air quality and adjusting settings remotely. One can schedule times to turn on and off. It also has different modes, to select to your preference manually or via the app. Although the unit is slightly large, but fit to handle the type of room size effectively. Noise levels are impressively low, even when running on sleep mode, and it doesn’t disturb your sleep. Overall, it's a good brand, well-designed, highly effective air purifier that delivers exactly what it promises. Highly recommended.

كنت شاك في البداية، بس الصدق الجهاز فاجأني. الجو صار أخف والنفس أريح، خاصة وقت النوم. مو معجزة، بس يسوي شغله زين. لو عندك غبار أو حساسية، بيخدمك

Very quiet in sleeping mode .

Ho aspettato per recensire per essere sicuro,viene usato regolarmente e ne sono pienamente soddisfatto.Consiglio