Blue 511i Max Smart WiFi Air Purifier, HEPASilent Dual Filtration Up To 43m², Whisper Quiet, Air Cleaner for Pets, Allergies, Virus, Dust, Mould, Smoke

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.

Seems ok, and phone app is useful. I've been using this for approx one month now and the phone app connected to this device is super useful to check on the current 'air quality' level as well as viewing how much of the filter is 'left' until it is recommended to be changed. My air quality is generally good or excellent on most days, and there is still (after one full month, 90% left) of my filter for use. So, it isn't working hard and you can probably get 10 months or 12 (if you push it) per year with each filter. Operationally, usage is very quiet, which is solid plus.

Great product. Had it around 2 months now and I'm shocked at the amount of dust this thing has filtered out the air. I bought this as I wake up with a blocked nose and a feeling like I've been tickled with a feather in my nose. Was dubious that this would make a difference but I was at my whits end so gave in, bought it and now wouldn't sleep without it on. Ease of use: Being able to store it behind my tv and be able to control it by the app is such a great thing. Easy to use, press the power button and it comes on, slide the fan speed and it changes quickly and an easy button press for night mode that you can barely hear

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.

Just started using it in my bedroom and I can already feel the difference. The air feels lighter and cleaner, and it’s super quiet — perfect for sleeping. Easy to set up and looks nice too. So far, very happy with it

Works perfectly fine. Connectivity from app to air purifier could be improved. Makes the air feel cleaner. Has helped with morning allergies. App includes useful information such as when the filter needs changing. Not very loud on fan 1 and 2 but is quite noisy on fan 3. I have found the schedule feature helpful.

Brilliant air purifier, only had it for a short amount of time but it works very efficiently. Very easy to set up and easy to use. The app is great too.

A great air purifier. I read about many first before purchasing this one. I do not use it all the time as will blow out cooler air but it has varying settings and can be used with or without WiFi. I use it without although t have set it up with so can keep n eye on the filter. It is quite ideal for my little property!