Some may claim that this comparison isn’t entirely fair, as the AEG AX5 is a much larger air purifier.
However, many people are unaware of the size and power differences between air purifiers, and I often receive questions about comparing models of completely different sizes.
This is also the first comparison in which I’m comparing two air purifiers that are primarily available in Europe. Until now, I’ve mainly focused on US-based air purifiers.
It’s also worth noting that Electrolux and AEG are essentially the same company operating under different brand names. As a result, you may come across an air purifier that looks identical to the AEG AX5, with the only difference being the name.
Our Verdict
I believe everything is more or less clear here.
The AEG AX5 is the clear winner in this comparison, thanks to its much larger filters, better carbon filter, smart features, higher CADR, and—most importantly—the better results in our performance tests.
If you have any questions about these two air purifiers, feel free to leave them in the comments section below the article.
Specs: AEG AX5 Vs Electrolux Flow A3
| Product Image |  |  |
| Manufacturer | AEG | Electrolux |
| Model | AX5 | Flow A3 |
| Dimensions (inches / cm) | 22.8 x 18.9 x 8.4 inches (57.9 x 48 x 21.3 cm) | 9.4 x 9.4 x 14.9 inches (24 x 24 x 38 cm) |
| Weight (pounds / kg) | 14.3 lb (6.5 kg) | 6.2 lb (2.8 kg) |
| Clean Air Delivery Rate (CADR) | 170 CFM (290 mÂł/h) | 106 CFM (180 mÂł/h) |
| Coverage (4.8 ACH)
Room Coverage Explanation: ACH is a measurement used in indoor air quality management to indicate how many times the air within a defined space is changed/moved through the filter media.
For more details, visit our ACH calculator tool. | 267 sq. ft. (25 m²) | 165 sq. ft. (15.3 m²) |
| Performance Ratings Performance Ratings Score Summary: 8.3 - Average Score (102 products) 9.9 - Best Score (1 products) 1 - Worst Score (1 products) We use the Temtop LKC-1000S laser particle meter to test the particle removal efficiency of every air purifier. It measures PM2.5 (µg/m3), PM10 (µg/m3), Particles (per/L), and HCHO (mg/m3) in the air, and also calculates the AQI. You can read more about our testing methodology here. | ||
| Filtration Technology | Pre-filter, Ultrafine Particle Filter, VOC Carbon Filter, and Ionizer | Pre-filter, HEPA Filter, and Activated Carbon Filter |
| Filter Replacement Indicator | Yes | Yes |
| Filter Life | up to 24 months | up to 12 months |
| Power Consumption
Power Usage Summary: Our extensive testing of 102 air purifiers revealed the following power consumption insights:
Check out our power consumption calculator tool. | 55W | 20W |
| Operating Costs Ratings Operating Costs Ratings Score Summary: 8.8 - Average Score (102 products) 10 - Best Score (2 products) 1.7 - Worst Score (1 products) We measure the power usage at all speeds using an energy meter, after which we calculate how much it would cost to use the device at a particular fan speed for one month. For reference, we use an energy price of $0.12 per kWh. You can read more about our testing methodology here. | ||
| Number of Fan Speeds | 5 - Speed 1, Speed 2, Speed 3, Speed 4, and Speed 5 | 4 - Sleep Mode, Low, Medium, and High |
| Air Quality Sensor Air Quality Sensor Summary: Out of 102 air purifiers tested, only 51 have the air quality sensor. | Yes | Yes |
| Air Quality Indicator | Yes | Yes |
| Auto Mode Auto Mode Summary: Out of 102 air purifiers tested, only 52 have auto mode functionality. | Yes | Yes |
| Smart App Smart App Summary: Out of 102 air purifiers tested, only 30 have smart app functionality. | Yes | No |
| Voice Control Voice Control Summary: Out of 102 air purifiers tested, only 29 have voice control functionality. | No | No |
| Other Features | Child Lock | Sleep Mode |
| Noise Level (low – high) | 40.1 – 56.8 dBA | 40.8 – 62.8 dBA |
| Noise Ratings Noise Ratings Score Summary: 9.2 - Average Score (102 products) 10 - Best Score (1 products) 7.6 - Worst Score (1 products) We use a special noise measurement tool to test the noise level of the air purifier at all speeds. We measured the noise level on the dBA scale. You can read more about our testing methodology here. | ||
| Best Suited For | Pets Living Rooms Offices Allergies Dust Long Filter Life | Bedrooms Low Energy Cost Small Spaces Portable Use |
| Warranty | 2-year | 2-year |
| In-Depth Review | AEG AX5 | Electrolux Flow A3 |
| Price |
Performance Test – Comparison
The fact that these two air purifiers are designed for different room sizes makes this comparison a bit more complicated.
The AEG AX5 is suitable for rooms up to 267 sq. ft. (25 m²), while the Electrolux Flow A3 is designed for spaces up to 165 sq. ft. (15.3 m²).
We tested each device in rooms suitable for their recommended coverage. However, what’s particularly interesting is that we also tested both in the same 194 sq. ft. (18 m²) room.
Particle Removal Tests - Comparison
We placed the AEG AX5 and Electrolux Flow A3 in two separate tests and measured their performance using the Temtop laser particle meter.
In this test, both devices ran at their maximum speeds for 60 minutes. During that time, the Electrolux Flow A3 improved air quality by 89%, while the AEG AX5 achieved an improvement of 94%.
It’s clear that the AEG AX5 was significantly more efficient in this test, which was expected given its larger filters and higher CADR.
Another advantage of the AEG AX5 is its better activated carbon filter, which is far more effective than the one found in the Electrolux Flow A3.
Noise Level Test – Comparison
When it comes to noise, the first thing I always compare is the number of fan speeds.
The Electrolux Flow A3 has four fan speeds, while the AEG AX5 has five, along with an additional auto mode.
Noise Levels - Comparison
Comparison of noise levels at all fan speeds between the AEG AX5 and Electrolux Flow A3 air purifiers.
We measured their noise levels at all speeds using a professional noise meter on the dBA scale.
The results? The AEG AX5 is one of the quietest air purifiers we’ve tested. At its lowest speed, it produces just 40.1 dBA, compared to 40.8 dBA on the Electrolux Flow A3.
| Fan Speed | AEG AX5 (dBA) | Electrolux Flow A3 (dBA) |
|---|---|---|
| Sleep Mode | - | 40.8 dBA |
| Speed 1 (Low) | 40.1 dBA | 45.6 dBA |
| Speed 2 (Medium) | 41.7 dBA | 51.9 dBA |
| Speed 3 (High) | 44.3 dBA | 62.8 dBA |
| Speed 4 (Turbo) | 49.9 dBA | - |
| Speed 5 (Maximum) | 56.8 dBA | - |
At maximum speed, the difference is even more noticeable: the AEG AX5 reaches 56.8 dBA, while the Electrolux Flow A3 climbs to 62.8 dBA.
It’s clear that the AEG AX5 is much better optimized for noise control than the Electrolux Flow A3.
Operating Costs – Comparison
The AEG AX5’s higher CADR requires a more powerful motor. It uses a 55W motor, whereas the Electrolux Flow A3 operates with a 20W motor.
If you were to run both air purifiers at maximum speed, 24 hours a day for an entire month, your electricity bill would increase by approximately $3.72 for the AEG AX5 and around $1.67 for the Electrolux Flow A3.
Monthly Power Consumption Cost - Comparison
Comparison of monthly power consumption costs for the AEG AX5 and Electrolux Flow A3 air purifiers at all fan speeds.
There’s also the cost of replacement filters. While the AEG’s filter is slightly more expensive, it may prove more cost-effective in the long run since AEG recommends replacing it only once every two years.
| Fan Speed | AEG AX5 (W + $/month) | Electrolux Flow A3 (W + $/month) |
|---|---|---|
| Standby | 0.5W ($0.04) | 0.1W ($0.01) |
| Sleep Mode | - | 2.5W ($0.22) |
| Speed 1 (Low) | 3.8W ($0.33) | 5.1W ($0.45) |
| Speed 2 (Medium) | 7.5W ($0.66) | 7.6W ($0.67) |
| Speed 3 (High) | 12W ($1.05) | 19.1W ($1.67) |
| Speed 4 (Turbo) | 20.6W ($1.81) | - |
| Speed 5 (Maximum) | 42.4W ($3.72) | - |
When you add up all the costs, I’d say these two air purifiers are roughly equal in terms of annual operating expenses.
Leave a Reply