Who Is It For?

Tired of sneezing and coughing indoors? The right air purifier can bring you relief. This review helps you compare options based on performance and value. Therefore, you can choose the best model for your home. We recommend the Braun High Performance Air Purifier
See PriceProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on amazon.co.uk or amazom.com at the time of purchase will apply to the purchase of this product..
Popular Air Purifier Models
If you’re exploring air purifiers, you might find these popular models helpful. Each one has unique features that make it stand out. Let’s take a closer look at three of them: the Blueair Blue Signature Air Purifier (Similar on Amazon: Blueair Blue Max 3250i Smart WiFi Air Purifier, HEPASilent… £149.00Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on amazon.co.uk or amazom.com at the time of purchase will apply to the purchase of this product.), the Shark NeverChange5 Air Purifier HP150UK See PriceProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on amazon.co.uk or amazom.com at the time of purchase will apply to the purchase of this product., and the Blueair Blue 511i Max Smart WiFi Air Purifier £129.99Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on amazon.co.uk or amazom.com at the time of purchase will apply to the purchase of this product..
The Blueair Blue Signature Air Purifier is great if you want something that operates quietly and has easy-to-change filters. It’s a bit heavier, but it can clean larger spaces effectively. The Shark NeverChange5 Air Purifier HP150UK is quick at cleaning the air and works well for odors, making it perfect for homes with pets. Lastly, the Blueair Blue 511i Max Smart WiFi Air Purifier offers smart features that allow you to control it from your phone, which is super convenient.
In conclusion, these air purifiers all have strengths that cater to different needs. Depending on what you’re looking for—quiet operation, fast cleaning, or smart features—one of these might be the right fit for you!
| Product | Best For | Key Features | Weight | Recommended Room Size |
|---|---|---|---|---|
| Blueair Blue Signature Air Purifier | Quiet operation | Easy filter change, responsive controls | 6 kg | Up to 63 m² |
| Shark NeverChange5 Air Purifier HP150UK | Quick air cleaning | Good for odors, compact design | 3.32 kg | Up to 60 m² |
| Blueair Blue 511i Max Smart WiFi Air Purifier | Smart control | Multiple fan speeds, in-app connectivity | 2.3 kg | Up to 43 m² |
Design, Size & Build Quality
When looking at air purifiers, the design, size, and build quality are important factors. Let’s take a look at three models to see how they compare: the Blueair Blue Signature Air Purifier, the Shark NeverChange5 Air Purifier HP150UK, and the

Blueair Blue Max 3350i
ÂŁ199.00Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on amazon.co.uk or amazom.com at the time of purchase will apply to the purchase of this product..
The Blueair Blue Signature Air Purifier is quite big and weighs 6 kg. Its dimensions are 44.5 x 39 x 39 cm, making it suitable for medium to large rooms. Its modern design fits nicely in various home styles. However, its size can make it somewhat heavy to move around.
The Shark NeverChange5 Air Purifier HP150UK has a more compact design, measuring 38.5 x 23.7 x 26.6 cm and weighing about 3.32 kg. This makes it easier to place in smaller spaces, though it’s not the most portable option. Its design is sleek, but some users find the touch screen slow to respond.
The Blueair Blue Max 3350i strikes a balance with dimensions of 48.4 x 31.8 x 31.8 cm and a weight of 3.53 kg. This model looks sturdy yet fairly portable, and it’s designed to fit in larger areas while still being manageable to move when needed.
| Product | Dimensions (cm) | Weight (kg) | Recommended Room Size (m²) | Design Features |
|---|---|---|---|---|
| Blueair Blue Signature Air Purifier | 44.5 x 39 x 39 | 6 | Up to 63 | Modern, fits various styles |
| Shark NeverChange5 Air Purifier HP150UK | 38.5 x 23.7 x 26.6 | 3.32 | Up to 60 | Sleek design, compact |
| Blueair Blue Max 3350i | 48.4 x 31.8 x 31.8 | 3.53 | Up to 86 | Sturdy, fairly portable |
In summary, if you want a powerful purifier that looks great but is a bit heavy, the Blueair Blue Signature Air Purifier is a solid choice. If you’re looking for something compact and stylish, the Shark NeverChange5 Air Purifier HP150UK fits well in smaller spaces. Lastly, the Blueair Blue Max 3350i offers a sturdy option that balances size and portability.
Air Filtration Performance
Air filtration performance is crucial for clean and healthy indoor air. Many people suffer from allergies, making effective air purifiers essential. In this section, we will compare various features and capabilities to help you choose the right one for your needs.
- Some purifiers can remove up to 99.9% of ultrafine particles.
- Many models come with smart sensors that adjust fan speed automatically.
- Room size can greatly influence the effectiveness of an air purifier.
- Regular filter changes are needed for optimal performance.
HEPA & Carbon Filter Efficiency
When choosing an air purifier, filter efficiency is crucial for clean air. HEPA filters capture small particles, while carbon filters help with odors. Let’s look at three products and how they perform with these filters.
The Blueair Blue Signature Air Purifier is known for its impressive 7-stage filtration system, which includes HEPA silent filtration technology. This means it can trap tiny particles and operate quietly, making it great for bedrooms.
The Shark NeverChange5 Air Purifier HP150UK features multiple filters, including a NanoSeal HEPA layer and activated carbon. This allows it to effectively reduce both allergens and smells, making it suitable for homes with pets or smokers.
Finally, the Blueair Blue Max 3350i uses HEPASilent technology, which combines mechanical and electrostatic filtration. This design helps it filter air efficiently while being relatively quiet, perfect for larger rooms.
| Product | Filter Type | Room Size |
|---|---|---|
| Blueair Blue Signature Air Purifier | 7-stage filtration with HEPA | Up to 63m² |
| Shark NeverChange5 Air Purifier HP150UK | NanoSeal HEPA, Activated Carbon | Up to 60m² |
| Blueair Blue Max 3350i | HEPASilent technology | Up to 86m² |
In summary, all these options provide strong filter efficiency. The Blueair Blue Signature is quiet, the Shark NeverChange5 is great for odors, and the Blue Max 3350i covers larger spaces. Choose the one that fits your needs best!
Coverage Area & CADR Rating
When choosing an air purifier, understanding the coverage area and CADR (Clean Air Delivery Rate) is very important. These measurements tell you how much air the purifier can clean and how quickly it can do so. Let’s look at three popular models: the Blueair Blue Signature Air Purifier, the Shark NeverChange5 Air Purifier HP150UK, and the Blueair Blue 511i Max Smart WiFi Air Purifier.
The Blueair Blue Signature Air Purifier can clean areas up to 63 square meters. It uses a 7-stage filtration system, which includes HEPA technology for better air quality. This model is great for medium-sized rooms.
Next, the Shark NeverChange5 Air Purifier HP150UK is designed for rooms up to 60 square meters. It has a strong air cleaning ability, making it effective for larger spaces, but is best known for its speed in cleaning air during tests.
Finally, the Blueair Blue 511i Max Smart WiFi Air Purifier can cover areas of 43 square meters. It is lightweight and easy to move, making it perfect for smaller spaces or rooms that need quick cleaning.
| Product | Coverage Area | Filtration System | Pros |
|---|---|---|---|
| Blueair Blue Signature Air Purifier | Up to 63 m² | 7-stage with HEPA | Good for medium rooms, quiet operation |
| Shark NeverChange5 Air Purifier HP150UK | Up to 60 m² | 4 filter layers | Quick air cleaning, effective for large spaces |
| Blueair Blue 511i Max Smart WiFi Air Purifier | Up to 43 m² | HEPA | Lightweight, easy to move |
In summary, if you need a purifier for larger spaces, the Blueair Blue Signature Air Purifier may be the best choice. For speedy cleaning, the Shark NeverChange5 Air Purifier HP150UK excels. If you want something lightweight for smaller areas, the Blueair Blue 511i Max Smart WiFi Air Purifier is a great option.
Noise Levels & Sleep Mode
When it comes to air purifiers, noise levels can really affect your comfort, especially at night. Let’s compare the noise levels of three models to help you choose the best one for your needs.
The Blueair Blue Signature Air Purifier is known for being quiet, with a sound level of 40.8dB on low and 55.2dB on high. This means it won’t disturb you while you sleep. In contrast, the Shark NeverChange5 Air Purifier has a higher maximum noise level of 60dB, which might be a bit loud for light sleepers, especially on the highest setting. The Blueair Blue 511i Max Smart WiFi Air Purifier operates at a sound level of 48dB, making it moderately quiet but not as silent as the Blue Signature model.
Here’s a quick comparison of their noise levels:
| Product | Noise Level (dB) | Best For |
|---|---|---|
| Blueair Blue Signature Air Purifier | 40.8 (low), 55.2 (high) | Quiet operation |
| Blueair Blue 511i Max Smart WiFi Air Purifier | 48 | Moderate noise |
| Shark NeverChange5 Air Purifier | Up to 60 | Effective but noisier |
In summary, if you need a really quiet air purifier for nighttime use, the Blueair Blue Signature Air Purifier is the best choice. The Blueair Blue 511i Max Smart WiFi Air Purifier is a good option if you can tolerate some noise, while the Shark NeverChange5 Air Purifier may be better for daytime use when noise is less of a concern.
Smart Features & Ease of Use
Smart features make air purifiers more convenient and effective. They can adapt to your home’s air quality, so you breathe easier and feel safer. (Comprehensive Review of the Blueair Max 3250i Air Purifier)
Many models come with user-friendly controls and sensors that adjust settings automatically. For example: (Comprehensive Review of Top Air Purifiers)
- Real-time air quality monitoring
- Automatic fan speed adjustments
- Night mode for quiet operation
These features not only enhance usability but also give you peace of mind. You can trust that your air is clean without constant adjustments. Overall, smart features and ease of use can transform your experience and improve your well-being.
App Control & Air Quality Sensors
When looking for an air purifier, app control and air quality sensors are important features. They help you monitor the air quality in your home and adjust the purifier settings easily. Let’s compare a few models that excel in these areas.
The Blueair Blue 511i Max Smart WiFi Air Purifier is known for its intuitive controls and seamless in-app connectivity. This means you can control it from your smartphone, making it very convenient. It also has various fan speeds to choose from, which helps you adjust the air purification based on your needs. However, one downside is that you can only control the run time through the app.
On the other hand, the Blueair Blue Signature Air Purifier also offers responsive controls both on the unit and via the app. It provides a good air quality experience without being noisy, which is a plus. Yet, this model is a bit larger and heavier compared to others, making it less portable.
Lastly, the Shark NeverChange5 Air Purifier HP150UK has a touch screen that can sometimes be slow to respond, but it is quick at cleaning the air in testing. It might not have app control, but it still performs well regarding air quality.
| Product | App Control | Air Quality Sensors | Portability |
|---|---|---|---|
| Blueair Blue 511i Max Smart WiFi Air Purifier | Yes | Yes | Lightweight |
| Blueair Blue Signature Air Purifier | Yes | Yes | Heavy |
| Shark NeverChange5 Air Purifier HP150UK | No | Yes | Moderate |
In summary, if you want an air purifier with great app control, the Blueair Blue 511i Max Smart WiFi Air Purifier is a strong choice. For those who prefer a quieter model, the Blueair Blue Signature Air Purifier might be better, despite its heavier design. Finally, the Shark NeverChange5 Air Purifier HP150UK offers solid air cleaning, but without app control.
Energy Efficiency & Maintenance
Energy efficiency and maintenance costs are important when choosing an air purifier. A high-performing purifier can save you money over time and improve your home’s air quality. In this section, we will explore various aspects of energy consumption and upkeep to help you make informed decisions.
– Some air purifiers have filters that need to be replaced regularly.
– Many models include features that adjust fan speeds to save energy.
– Efficient purifiers can provide excellent performance while using less electricity.
Filter Replacement Costs
When choosing an air purifier, understanding filter replacement and running costs is vital. Some purifiers have filters that last a long time, while others need frequent changes, which can affect your budget.
The Blueair Blue Signature Air Purifier has filters that last between 9 to 12 months, making it easier on your wallet over time. However, it’s important to note that it is quite big and heavy, which might make moving it around a bit tricky.
In contrast, the Blueair Blue 511i Max Smart WiFi Air Purifier has a shorter lifespan for its filters but is much lighter and more portable. This model is great for smaller spaces and offers intuitive controls, but you will need to replace the filter more often.
The Shark NeverChange5 Air Purifier HP150UK stands out because it features a design that allows for quicker air cleaning, but it may not be the most portable option. The filters are easy to replace, but like the others, you will need to keep track of when to change them.
Here’s a quick comparison:
In summary, if you want a longer filter life and are okay with a heavier unit, the Blueair Blue Signature Air Purifier is a solid choice. For lighter and more portable options, consider the Blueair Blue 511i Max Smart WiFi Air Purifier. Meanwhile, the Shark NeverChange5 Air Purifier HP150UK offers good performance but may not be as easy to move. Always keep an eye on how often filters need replacing to manage running costs effectively! (Comprehensive Automatic Air Purifier Review: Top Picks)
Safety & Certifications
When choosing an air purifier, safety and certifications are important. They ensure that the product is tested for quality and meets health standards. Here, we will look at three products: the Blueair Blue Signature Air Purifier, the Shark NeverChange5 Air Purifier HP150UK, and the Blueair Blue Max 3350i.
The Blueair Blue Signature Air Purifier is known for its HEPA silent filtration technology, which effectively removes allergens and pollutants. It is also designed to be less noisy, making it suitable for bedrooms or quiet spaces.
The Shark NeverChange5 Air Purifier HP150UK features multiple filtration layers, including activated carbon, which helps eliminate odors. It is also tested to be effective in rooms up to 60 square meters, ensuring a good coverage area for families.
In comparison, the Blueair Blue Max 3350i is built with HEPASilent technology, which combines mechanical and electrostatic filtration. This allows it to capture even the smallest particles while operating quietly.
| Product | Filtration Type | Noise Level | Area Coverage |
|---|---|---|---|
| Blueair Blue Signature Air Purifier | HEPA Silent | Quiet | Up to 63 m² |
| Shark NeverChange5 Air Purifier HP150UK | Multi-layer (HEPA, Activated Carbon) | Up to 60 dB | Up to 60 m² |
| Blueair Blue Max 3350i | HEPASilent | Quiet | Up to 86 m² |
In summary, each air purifier has unique features that cater to different needs. The Blueair Blue Signature is great for quiet environments, the Shark NeverChange5 HP150UK excels in odor removal, and the Blueair Blue Max 3350i offers a wider coverage area.
User Reviews & Feedback
Many people share their experiences using air purifiers, which can help you decide which one is best for you. Here, we look at three popular models: the Blueair Blue Signature Air Purifier, Shark NeverChange5 Air Purifier HP150UK, and Blueair Blue 511i Max Smart WiFi Air Purifier.
The Blueair Blue Signature Air Purifier is known for being quiet and easy to use. Users like that its filters last up to a year, which helps save money. However, some find it a bit heavy and bulky, making it less portable.
In contrast, the Shark NeverChange5 Air Purifier HP150UK is praised for quickly cleaning the air, but users note that its touch screen can be slow sometimes. Its compact design makes it suitable for smaller spaces, but it may not be as easy to move around.
The Blueair Blue 511i Max Smart WiFi Air Purifier is appreciated for its smart features and in-app controls, making it very convenient. However, users must control the run time through the app, which some find limiting.
| Product | Best For | Key Features | Pros | Cons |
|---|---|---|---|---|
| Blueair Blue Signature Air Purifier | Quiet operation | Filters last 9-12 months | Easy to use, not noisy | Heavy and bulky |
| Shark NeverChange5 Air Purifier HP150UK | Quick air cleaning | Compact design | Effective air cleaning | Slow touch screen |
| Blueair Blue 511i Max Smart WiFi Air Purifier | Smart features | In-app controls | Intuitive connectivity | Run time only via app |
In summary, user feedback shows that each air purifier has its strengths and weaknesses. The Blueair models are great for quiet operation and smart features, while the Shark NeverChange5 Air Purifier HP150UK excels in air cleaning speed.
Value & Final Verdict

The Braun High Performance Air Purifier BFD104BE
ÂŁ139.00Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on amazon.co.uk or amazom.com at the time of purchase will apply to the purchase of this product. offers excellent features for its price. It effectively cleans large rooms, removing up to 99.9% of ultrafine particles, which is great for allergy sufferers. However, the replacement filters can be expensive, and while the design is sleek, it may not be the most portable option for everyone. Therefore, if you need a reliable air purifier for larger spaces, this model is worth considering.
In conclusion, the Braun High Performance Air Purifier provides good value for money, especially with its advanced filtration system and smart features. Still, potential buyers should weigh the cost of filter replacements against its overall performance. If you’re looking for cleaner air in your home, investing in this purifier could be a smart choice.
FAQs
The Braun High Performance Air Purifier is suitable for rooms up to 129 square meters. This makes it effective for large spaces like living rooms, offices, and classrooms.
The Braun Air Purifier uses a triple filtration system. It includes a pre-filter for larger particles, a True HEPA filter for allergens, and a carbon filter to reduce odors and VOCs.
The carbon filter in the Braun Air Purifier should be replaced every six months. This ensures it effectively reduces odors and harmful gases.
The air quality sensor continuously monitors the levels of particles and VOCs in the air. It adjusts the filtration intensity automatically based on real-time readings.
The Braun Air Purifier operates quietly, making it suitable for use in bedrooms or offices without disturbing your peace.
This air purifier is ideal for allergy sufferers and those living in areas with poor air quality. It efficiently removes allergens and pollutants from the air.
The package includes the air purifier itself, a patented washable ECO filter, a washable mesh pre-filter, and an odor & VOC carbon filter.
The Braun Air Purifier weighs approximately 4.5 kg. This weight allows for easy mobility around your home while still being sturdy.


