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We’ve locked down selected products to 2021’s lowest price for your business. And they’re guaranteed not to rise for 30days!*

*Selected top tech guaranteed to match or be lower than last year’s lowest price. Our price lock means selected prices will not increase during a 30 day promotion period. There are three promotion periods planned, period 1 - 20/07/22 - 18/08/22, period 2 - 19/08/22 - 17/09/22 and period 3 18/09/22 - 17/10/22. Promotion subject to product availability, Currys reserves the right to cancel the promotion at any time.

BLUEAIR Blue Pure 511 Air Purifier

N768174W | 110344

Free delivery

Next Day delivery available

  • Removes airborne allergens from the air
  • Multi-stage air purification
  • Real-time air quality monitoring
  • Suitable for room size up to 38 m²
  • HEPASilent Technology
  • 3 settings
Business Price Promise

Buy from us safe in the knowledge you’ve paid a great price.

If you find Argos, John Lewis, AO.com or eBuyer.com has the same product at a cheaper price, including voucher offers, we’ll match it – even up to 14 days after purchase.

Learn more
Product information

Enjoy clean, pure air with this Blueair air purifier. It's got a HEPASilent filter that not only traps nasty airborne particles like allergens and viruses, but also makes less noise and uses less energy while at it. The carbon + particle filter catches dust particles, odours and allergens from the air before they have a chance to land on your floors and furniture. Now, you can breathe in fresh, germ-free air. And its low noise-levels won't disturb you at night and lets you sleep like a baby.

Good to know

- The 360 degree air intake, means you can place it anywhere in the room
- Activate Night mode, Everyday mode and Boost mode with the simple one-button control
- It can fully filter air in rooms up to 38m², making it perfect for dorms or small home offices 
- With less than 16 W of energy usage, it keeps you healthy and your wallet happy
- The LED display indicator helps you track the air quality

BLUEAIR Blue Pure 511 Air Purifier, Removes airborne allergens from the air, Multi-stage air purification, Real-time air quality monitoring, Suitable for room size up to 38 m², HEPASilent Technology, 3 settings


Basic Specifications

Manufacturer's Part Number
Under 20 W
Number of Settings
3 Speed Settings
Auto Sensor
Room Size
Up to 50m
Noise Level
20 - 40 dB(A)
Flow Rate


White & grey
Box contents
- Blueair Blue 511 air purifier
- Particle + Carbon filter
- Pre-filter in Stockholm Fog
- Instruction manual
340 x 200 x 200 mm (H x W x D)
Boxed dimensions
424 x 236 x 232 mm (H x W x D)
1.9 kg
Boxed weight
2.36 kg
Manufacturer’s guarantee
2 years


Air purifier
16 W


Speed settings
Digital display
LED indicator
Noise level
24 dB(A)
Suitable for room size up to
38 m²
Real-time air quality monitoring
Other features
- Auto mode
- Night mode
- Everyday mode
- Boost mode
- One-button design
- Integrated air sensors


HEPA filter
CADR rating - Smoke
CADR rating - Pollen
CADR rating - Dust
Number of filters included
Delivery FAQs

Next Day delivery

Next day delivery available for small items directly from our warehouse as identified on our listings page and ordered before 15:00. Postcode restrictions may apply. For full terms and conditions please visit T&Cs.


Standard delivery is free on small items over £40 ex VAT. Large items (large kitchen appliances and some TVs over 40") do not qualify for standard delivery. There are a variety of free and chargeable delivery options for these items detailed during the checkout process.

How long does delivery take?

Products will be sent as soon as possible, but may be delayed due to supply chain pressures. Predicted lead time for your chosen product/s will be detailed in your basket before checkout.
For large items (kitchen appliances, large screen TVs etc.) you can select your delivery date and time during the checkout process.

Installation and recycling information

Installation and recycling are available on large items (large kitchen appliances and TVs over 40”) and can be selected during the checkout process.
If you have selected recycling, please ensure your existing appliance is disconnected (and defrosted where relevant) before our team arrive.
Where installation has been purchased, our team will disconnect your existing appliance, install your new product and connect it to existing services within 1 meter.

Please note: Installations are only available to domestic premises. Our installers are not authorised to install any products within any commercial location

Price Match

We'll match against any other UK retailer store or website price including offer-code discounts.

How to request a business price match
We promise to match the competitor’s price available when you contact us. To request a price match for:

  • Online purchases: Contact us here.
  • In store purchases: Contact us here.

Information you’ll need
If you have already purchased you’ll need your receipt, the competitor you want us to match and details of any relevant voucher offers.
If you have not yet purchased you’ll need; the product code (available on the product page), our price, the competitor you want us to match and details of any relevant voucher offers.

We’ll even price match 7 days after your purchase!
Here’s how to get a price match if you’ve already bought:
If you see the same item cheaper elsewhere, within 7 days of buying from us we’ll refund you the difference.
If you bought online: call us on 0344 561 6789 and have your receipt handy.

Price Promise terms & conditions
We'll match against any other UK retailer store or website price including offer-code discounts. We’ll match the prices of any products (not delivery, installation charges, product protection plans or other services) offered on identical terms and where we can check the price and stock position. Our competitor’s product must be the same model number as ours. Both us and the competitor must have the product in stock and ready for delivery. We do not match competitor’s ink prices, trade, membership & 3rd party market place sellers.

Limited to maximum five units per order or transaction. Cannot be used with any other offer.