Blueair Blue 511i Max Smart WiFi Air Purifier, HEPASilent Dual Filtration, Covers up to 43m²
Pros
- HEPASilent technology combines mechanical and electrostatic filtration
- WiFi and app control lets you monitor air quality remotely
- Washable pre-filter reduces ongoing filter costs
Cons
- Higher upfront cost than basic HEPA-only purifiers
Specifications
- Brand
- Blueair
- Price tier
- Premium
- Power
- High-Power
How it compares in Air Purifiers
We list 19 air purifiers products, priced from £19.99 to £159.99. At £124.66 this one is the 14th cheapest of them — 5 cost more. The average across the subcategory is £84.48 and the midpoint is £84.99, so it lands £40.18 above the average.
Its 4.5-star score sits level with the air purifiers average of 4.46, with 5 of the 19 rated higher. Its 376 Amazon reviews make it the 12th most-reviewed here, against a subcategory average of 6,097.
Price position in Air Purifiers
Splitting the subcategory into three price bands puts this product in the Premium band (£108.99–£159.00), which holds 5 of 19 products and averages £135.41 at 4.52 stars.
| Band | Range | Products | Average price | Average rating |
|---|---|---|---|---|
| Budget | £19.99–£49.99 | 7 | £37.30 | 4.37 |
| Mid-range | £49.99–£99.99 | 7 | £81.28 | 4.51 |
| PremiumThis one | £108.99–£159.00 | 5 | £135.41 | 4.52 |
About this product
The Blueair Blue 511i Max Smart WiFi Air Purifier offers a premium solution for improving air quality in your home. This purifier utilises Blueair’s established HEPASilent performance, enhanced with up to 83% faster cleaning and a reduction of 50% in noise levels. Designed for those seeking effective air purification without disruptive operation, the Blue Pure 511i Max is suitable for larger living spaces, capable of covering an area of up to 43m².
This model employs HEPASilent dual filtration technology, targeting a wide range of airborne particles including dust, pet dander, pollen and mould. It’s engineered to remove at least 99.97% of particles down to 0.1 microns, and the carbon filter helps capture light household odours. The purifier operates quietly, with a noise level as low as 19db and a maximum of 48db, featuring a Night mode that dims lights and reduces fan speed for undisturbed sleep.
Connectivity is key – the Blueair smart air purifier app allows you to schedule cleaning cycles, monitor air quality in real-time, and track filter life using RealTrack technology. It also supports Alexa voice control. The device measures 23.8D x 23.8W x 36H centimetres and weighs 3.2 kilograms, with a power consumption of 18 watts.
The Blue Pure 511i Max incorporates a washable pre-filter to extend the life of the filters and reduce ongoing costs. It’s an Energy Star certified product and features a grey and white colour scheme.
Related attributes
Power
FAQ
What is the Blueair Blue 511i Max best suited for?
This air purifier is designed to effectively clean larger spaces, covering up to 43 square meters. It's particularly well-suited for bedrooms, living rooms, or home offices where you want to reduce airborne allergens and odors.
What materials are used in the construction of the Blueair Blue 511i Max?
The purifier features a grey and white exterior with a predominantly plastic build. The filter components utilise a HEPA filtration system, and the unit incorporates a washable pre-filter for extended use.
How does the noise level of this air purifier compare to others?
Operating on low, the Blue Pure 511i Max produces just 19 decibels of noise. It will not exceed 48 decibels even at its highest setting, making it suitable for use in bedrooms or quiet areas.
What kind of maintenance is required to keep the Blueair Blue 511i Max functioning correctly?
The unit includes a washable pre-filter that should be cleaned regularly – typically every one to three months depending on usage. Replacement filters, utilizing HEPASilent technology, are recommended approximately every six to nine months based on RealTrack filter tracking.
How does the Blueair Blue 511i Max compare in price to other air purifiers with similar features?
As a premium air purifier, the Blue Pure 511i Max has a higher upfront cost than basic HEPA-only models. However, its advanced features like WiFi control and faster cleaning performance justify the investment for those prioritizing air quality.
What is the maximum area this air purifier can clean?
The Blueair Blue 511i Max can effectively clean up to 43 square meters of space in a single cycle, or 18 square meters as quickly as 12.5 minutes on high.
Can I control the Blueair Blue 511i Max remotely?
Yes, this air purifier offers remote control via its mobile app. This allows you to schedule cleaning cycles, monitor air quality in real-time, and utilize features like Clean Air ETA.
What type of filters does it use and how often do I need to replace them?
It utilises HEPASilent dual filtration technology with a carbon filter for odor removal. Filter replacement is recommended approximately every six to nine months, tracked by the RealTrack system within the app.
Are there any safety precautions or usage notes associated with this product?
Always ensure the power cable is not damaged and that the unit is placed on a stable surface. Do not operate in excessively humid environments or block air vents to prevent overheating.
What are the dimensions of the Blueair Blue 511i Max?
The item dimensions are 23.8 centimetres (D) x 23.8 centimetres (W) x 36 centimetres (H). The unit weighs 3.2 kilograms.
£124.66
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