Blueair HealthProtect™ 7440i Air Purifier

  • £699.00
    Unit price per 

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  See HealthProtect™ 7440i in action:

Meet the Blueair HealthProtect™ 7440i - the state-of-the-art air purifier from Blueair. It uses patent-pending technology that combines electrostatic and mechanical filtration to kill 99% of germs and eliminate dust, pollen, pet dander, mould, VOCs and odours.  Featuring the HEPASilent Ultra™ technology, the air purifier delivers 50% more clean air, uses 55% less energy and is 10% quieter than conventional True-HEPA air filtration solutions.  

  Excellent choice for:

  • Shoppers with rooms up to 52 m2

  • People living with asthma and/or allergies.

  • Pet owners.

  • Those who live near busy roads.

  • Customers who want to eliminate odours, gases, smoke, and harmful VOCs. 

  • Parents of young children. 

  • Light sleepers.

  • Shoppers who have Amazon Alexa enabled devices. 

  • Buyers who seek an appliance with globally recognised certifications.

  Why we love it:

  • The HEPASilent Ultra™ technology kills 99.97% of airborne pollutants down to 0.1 microns.

  • The activated carbon filter removes odours, gases, smoke, and VOCs.

  • The GermShield™ technology kills viruses and bacteria on the filter.

  • The SpiralAir™ outlets deliver more clean air to every corner of the room.

  • Produces a uniquely high clean air delivery rate (CADR) for more clean air at lower fan speeds.

  • Uses 55% less energy and is 10% quieter than conventional True-HEPA air purifiers.

  • Certified by the Association of Home Appliance Manufacturers (AHAM).

  • The air quality display gives quick updates on particle and gas levels.

  • Features hidden wheels for effortless movement and a handy power cable winder.

  • Works with Amazon Alexa for additional features and effortless voice control. 

  • Automatically adjusts for changing air quality so your air is always clean.

  • Quite "night" mode for a restful night's sleep and child lock to discourage tiny fingers. 

  • The winner of several design awards.

  • Change the SmartFilter every 6 to 12 months depending on your environment.

  Reviewed by our team:

Air purifier expert's opinion - Aerify

"What I really like about the HealthProtect™ 7440i is its patent-pending HEPASilent Ultra™ technology. It uses electrostatic charging and mechanical filtration to clean the air. This results in more clean air, whisper-silent operation and much lower energy consumption, perfect for households and business settings." - David, customer support.

Click the "More Info" tab now to learn more or "Add To Basket" to place your secure order.

More Info

The Blueair HealthProtect™ 7440i - quietly fills your room with more clean air

If you want to ease COPD, asthma or allergy symptoms, reduce unwanted household odours, gases, smoke and VOCs, eliminate airborne viruses or simply improve the air quality in your home, then the Blueair HealthProtect™ 7440i is the right appliance for you.  The air purifier is suitable for all indoor environments up to 52 m2 

HEPASilent Ultra™ technology efficiently takes care of airborne pollutants 

The patent-pending HEPASilent Ultra™ technology is Blueair's most advanced filtration technology ever.  It combines two time-tested filtration technologies - electrostatic charging and mechanical to remove up to 99.97% of airborne particles down to 0.1 microns, trapping even the smallest viruses and microplastics in addition to dust, pollen, pet dander, bacteria and smoke.

Airborne particles receive an electrical charge that makes them ‘sticky’ – so instead of simply passing through, smaller particles stick to the SmartFilter.  The filter mesh catches larger particles.  

Pre-filter and 2-in 1 SmartFilter deliver superior performance

The SmartFilter comprises one particle filter layer and one active carbon filter layer. The activated carbon in the SmartFilter removes gas, odours, smoke, VOCs, exhaust, smog, and chemicals from the air. The two parts of the SmartFilter are attached at the top, so when removing it, you can just fold it over like a booklet to keep dust and pollutants from escaping.

The built-in smart chip tracks the use of the filter and notifies you through the Blueair app when it is time to replace it. The SmartFilter must be replaced every 6 to 12 months, depending on your environment. 

Simple push-out pre-filter cassettes trap large particles such as hair and dust before they enter the air purifier, prolonging the life of the SmartFilter.

GermShield™ delivers 24/7 protection against viruses and bacteria

The patent-pending GermShield™ technology proactively monitors your room and kills airborne viruses and bacteria on the filter using low air draft and plasma charging. A gentle stream of air then ensures no fresh growth of germs.

Certified by AHAM to provide you with the highest levels of allergy prevention

The Blueair HealthProtect™ 7440i is certified by AHAM (Association of Home Appliance Manufacturers) to ensure that you are using an air purifier that can genuinely improve your indoor air quality and make a real difference in your life.  

Uses 55% less energy and is 10% quieter than conventional True-HEPA air purifiers

Because the HEPASilent Ultra™ technology uses a less dense filter, it requires less air pressure to push air through. This allows the Blueair air purifier to produce more clean air at lower fan speeds, which also makes it less noisy and less energy-consuming. The air purifier, when running at lower speeds, uses less energy than a traditional incandescent lightbulb.  

Uniquely high particle clean air delivery rate for improved ventilation and cleaner air

The HEPASilent Ultra™ technology provides a higher particle Clean Air Delivery Rate (pCADR) than conventional methods of only mechanical filtration.  This enables the air purifier to filter the air at the rate recommended by the industry of 4.8x per hour in a room up to 38 m².

The Blueair HealthProtect™ 7440i also features patent-pending SpiralAir™ outlets.  They are uniquely designed to produce airflow in all directions and deliver more clean air to every corner of the room.

Particle, gas, temperature and relative humidity sensors for real-time indoor air quality monitoring

The Blueair HealthProtect™ 7440i has a dynamic screen control with a 5-colour indicator bar that gives quick updates on particle and gas levels. The numerical display quantifies the levels for PM1, PM2.5 and PM10 particles. The room temperature and relative humidity are shown on the screen.

The air quality sensors in the Blueair air purifier provide real-time indoor air quality information, allowing you to take complete control of your indoor air.

In "auto" mode, the air purifier automatically controls the airflow according to the air quality information provided by the sensors.

"Quiet Mark" certification ensures a restful night of sleep

The recipient of the "Quiet Mark" certification, the Blueair HealthProtect™ 7440i, can operate at a noise level of as low as 27 dB(A) in the "night" mode. The "night" mode runs the unit silently helping you sleep better and feel more energetic and refreshed in the mornings.   

Hidden wheels for simple movement and a handy power cable winder

The two hidden wheels allow you to move the air purifier anywhere in the room.  The air purifier has a manual power cable winder so that you can store away any excess cable length. 

Connected experience with Amazon Alexa and Blueair mobile app

The Blueair HealthProtect™ 7440i is a Wi-Fi enabled air purifier that only requires a one-time quick set-up. You can adjust the settings such as child lock, "night" mode schedule, LED brightness, and more from your mobile device via the Blueair app. You can also connect the air purifier with your Amazon Alexa enabled device for effortless voice control.

Winner of several design awards

The Blueair HealthProtect™ 7440i is one of the most stylishly designed appliances in the industry. The recipient of the "Red Dot" and "iF Design" awards, the seal of approval of the "Good Housekeeping Institute", this powerful air purifier from Blueair is sure to add a touch of style to any room in your home. 

Blueair HealthProtect™ 7440i Air Purifier With Family At Dinner Table - Aerify

Click the "Specification" or another tab now to learn more or "Add To Basket" to place your secure order.


Model HealthProtect™ 7440i
Maximum Recommended Room Size (GB 18801-2015 Standard) 52 m2
CADR (Clean Air Delivery Rate)

Pollen - 475 m3/h (280 CFM)

Dust - 465 m3/h (275 CFM)

Smoke - 435 m3/h (270 CFM)

SmartFilter Grade HEPASilent Ultra™ removes at least 99.97% of particles sized 0.1 micron
Filtration Stages 3
Particle Sensor Yes
Gas Sensor Yes
Temperature Sensor Yes
Relative Humidity Sensor Yes
Filter Replacement Indicator Yes
Noise Level 27 - 55 dB(A) 
Rated Voltage 220 - 240 V, 50/60 Hz
Power Consumption 9 - 43 W
SmartFilter Lifespan 6 - 12 months
Fan Speed Levels 3
Wi-Fi Connectivity Yes
On/Off Timer Yes via the app
Dimensions (H x W x D) cm 69.1 x 30.0 x 30.0
Weight (kg) 12.5
Manufacturer's Guarantee 12 months



  Blueair HealthProtect™ 7440i instruction manual

  Blueair performance book


Blueair HealthProtect™ 7440i Air Purifier Replacement SmartFilter - Aerify

Blueair HealthProtect™ 7440i Air Purifier Replacement SmartFilter

The SmartFilter consists of one particle filter layer and one active carbon filter layer.  The activated carbon in the SmartFilter removes gas, odours, smoke, VOCs, exhaust, smog, and chemicals from the air.


Delivery And Returns 

Order confirmation

As soon as you place your order, you will receive an order confirmation e-mail. We will automatically reach out to our supplier to confirm that the item is in stock. If your item is in stock, we will process the charges to your credit or debit card. 

Free Delivery On Orders Over £50

  • Dispatched directly from a supplier in the UK.

  • Order processing time: 1-2 business days.

  • Estimated delivery time: 1-2 business days.

  • Orders are not shipped or delivered on weekends or during public holidays. 

  • If we are experiencing a high volume of orders, shipments may be delayed by a few days.

Free Returns

Naturally, we hope you'll love your purchase, but it's OK to change your mind. 

Our return policy lasts 14 days.  

For full information, please read our returns and refunds policy. 


  • How often do I need to replace the SmartFilter?

    The air purifier calculates the remaining lifetime of the filter based on usage and sensor readings and shows when it is time to change the filter. The recommended time for filter change is between 6-12 months, depending on the indoor conditions. A filter replacement indicator appears on the control panel when it is time to change the filter. 

  • How often do I need to clean the pre-filters?

    It's a good practice to clean the pre-filters once every 14 days.

  • What is Germshield™?

    Germ growth may happen when temperature and humidity levels are high. The Germshield™ functionality prevents germ growth inside the air purifier when it is not in use.

  • What is HEPASilent Ultra™?

    The HEPASilent Ultra™ is Blueair's technology that combines mechanical and electrostatic filtration.  Compared to the HEPASilent technology (used with Blueair Classic and JOY air purifiers), the new Ultra™ technology combines an optimised fan system, electrostatic filtration and an improved filter.

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  How we give back

For every product you buy we donate £2 through JustGiving to "Cots for Tots" - the special care baby charity for sick and premature babies at Bristol’s Special Care Baby Unit at St. Michael’s Hospital.