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Buying an air purifier for your home brings a lot of benefits. Not only does it clean the air you breathe, but also gives you a sense of relief and peace for your family’s safety too. Air purifiers are particularly helpful to people with allergies, asthma, or other respiratory problems.
In today’s article, we are going to compare Blueair Classic 205 vs Blueair Classic 280i two air purifiers for your home. Both products are from a Sweden-based company, Blueair, which has helped many people around the globe. Let’s jump right into their similarities.
| Blueair Classic 205 | Blueair Classic 280i | |
|---|---|---|
| Image |  |
 |
| Recommended Room Size | 279 sq. ft. | 279 sq. ft. |
| HEPASilent Filtration Technology | Yes | Yes |
| DualProtection Technology | No | Yes |
| Wi-Fi connectivity | Yes | Yes |
| Alexa-compatible | Yes | Yes |
| On/off timer | Yes (via Blueair App) | Yes (via Blueair App) |
| Filter replacement indicator | Yes | Yes |
| Speed control options | 1 – 2 – 3 | 1 – 2 – 3 – AUTO |
| Integrated air sensors | No | Yes |
| Sound level | 32 – 56 dB(A) | 32 – 56 dB(A) |
| Air outlet | Top | Top |
| Air inlet | Back | Back |
| Air changes per hour (ACH) | 5 | 5 |
| Clean air delivery rate (CADR) | Pollen – 200cfm
Dust – 200cfm Smoke – 180cfm |
Pollen – 200cfm
Dust – 180cfm Smoke – 200cfm |
| Energy consumption | 20 – 80 W | 20 – 80 W |
| Dimensions (H x W x D) | 21 x 17 x 9 in | 21 x 17 x 9 in |
| Product weight | 24lbs | 24lbs |
| What’s Included | Classic 205 air purifier, Particle filter, Instruction Manual | Classic 280i air purifier, DualProtection filter, Instruction manual |
| Warranty | Up to 5 years | Up to 5 years |
| Price | Check Price on Amazon | Check Price on Amazon |
Similarities between Blueair Classic 205 and Blueair Classic 280i
Let’s see how this machine are similar.
Room Size
Air purifiers can only do so much filtering. That is why you should know the recommended room size the air purifier can clean. As for both the Blueair Classic 205 and Classic 280i, they are ideal for small to medium rooms with a floor area of 279 square feet. Rooms such as bedrooms, nurseries, and offices are perfect areas to place either the Classic 205 or the Classic 280i.
HEPASilent Filtration Technology
The filters inside the Classic 205 and Classic 280i feature Blueair’s HEPASilent filtration technology which promises to purify at least 99.97% of airborne particles. Additionally, even particles that are 0.1 microns in size can also be filtered by combining electrostatic and mechanical filtration technologies. The Classic 205 and Class 280i can purify a room fast in just 12 minutes.
Wi-Fi and Alexa-compatible
You can ask your Amazon Echo to purify your surroundings by saying “Alexa, ask Blueair to purify the air.” This a very convenient feature that allows you to control the Blueair Air Purifiers even when you are in the next room. Furthermore, you can install the Blueair App from both Google Play Store and Apple Appstore to have more control over the Blueair Classic air purifiers. You can have more robust controls using the said app.
Differences between Blueair Classic 205 vs Blueair Classic 280i
Let’s see how these two machines differ and which HEPA air purifier is better in those categories where they differ.
DualProtection Technology
Some Blueair air purifiers have the DualProtection technology which can filter not only particles but also gasses and odors from the air. It uses activated coconut carbon filter to achieve this without requiring the use of chemical additives. Blueair recommends changing the filters in these air purifiers every 6 months.
Blueair Classic 205
Unfortunately, being the cheaper of the two, the Blueair Classic 205 does not have DualProtection Technology. However, Blueair’s HEPASilent is still enough for people who just want cleaner air for their allergies or asthma.
Blueair Classic 280i
The Blueair Classic 280i sports the HEPASilent and the DualProtection technology for a higher level of protection. You do not have to worry about gasses and odors anymore. The Classic 280i uses natural coconut carbon to filter out harmful airborne gaseous pollutants like smoke, volatile organic compounds (VOCs), exhaust, smog, odors, and chemicals. This filtration system can filter 4 times faster than other Blueair carbon filters. Due to the more advanced filtration, the Classic 280i bests the Classic 205.
The Winner Is- Blueair Classic 280i
Auto Speed Control and Integrated Air Sensor
Both the Classic 205 and Classic 280i are easy to operate due to their simple controls. The addition of an accompanying Blueair app brings versatility and remote-control functionality.
Blueair Classic 205
There are 3 fan speeds you can set via their integrated control or the Blueair App. You can also set both air purifiers to a whisper-silent mode to avoid interrupting your sleep at night. Both can operate silently at around 32 to 56 decibels. Additionally, you can set the time for filtering that fits your schedule using the Blueair app.
Blueair Classic 280i
The Classic 280i has the additional feature of setting the fan speed to auto which controls it depending on its surrounding air condition. It has an additional integrated air sensor to do just that. Due to this, you can set the Classic 280i to auto mode to let it do all the work for you. Our winner in this category is the Blueair Classic 280i.
The Winner Is- Blueair Classic 280i
Price
Air purifiers are generally expensive. But the security and function it gives to you and your family more than justify its cost.
Blueair Classic 205
For its basic air-purifying and filtering, the Blueair Classic 205 costs lower. Due to its lower price tag, it can only filter airborne pollutants such as pollens, dust, viruses, pet dander, etc using the HEPASilent technology. Furthermore, both the Classic 205 and Classic 280i have a low energy consumption of 20 to 80W.
Blueair Classic 280i
Due to the added protection that the DualProtection technology brings, the Blueair Classic 280i is more expensive. Moreover, the Classic 280i has built-in sensors for particles (PM 2.5) gasses, temperature, humidity, and as well as the auto-mode setting which add to its price. If you want more advanced protection for your family, choose Blueair Classic 280. But if you have a lower budget, take a look at the Blueair Classic 205.
The Winner Is- Blueair Classic 205
Pros and Cons
Blueair Classic 205
Pros:
- Removes 99.97% airborne particles
- Purifies room in just 12 minutes
- HEPASilent Technology
- Can filter particles as small as 0.1 microns
- Perfect for smaller to medium-sized rooms
- Wi-Fi and Alexa-compatible
- 3 fan speeds including whisper-silent mode
- Remote control using the Blueair App
- Warranty up to 5 years
- Sturdy build
- Cheaper
Cons:
- Does not have DualProtection Technology
- Does not have an auto mode for fan speed
- Does not have integrated air sensors
Pros:
- Removes 99.97% airborne particles
- Purifies room in just 12 minutes
- HEPASilent Technology
- DualProtection Technology
- Can filter particles as small as 0.1 microns
- Perfect for smaller to medium-sized rooms
- Wi-Fi and Alexa-compatible
- 3 fan speeds including whisper-silent mode
- Remote control using the Blueair App
- Warranty up to 5 years
- Sturdy build
- Auto mode for fan speed
- Has integrated air sensors for automatic operation
Cons:
- More expensive
Which HEPA Air Purifier is better?
Both Blueair Classic 205 and Classic 280i do an amazing job of purifying the air and keeping your family safe. They operate silently and do not consume a lot of energy. However, one of them is better. The Blueair Classic 280i is the superior air purifier but with a higher price tag. It filters gasses and odors aside from the typical airborne particles. With that said, the Blueair Classic 280i is the winner of this comparison.