BLUEAIR Blue Pure 311i Max Smart Air Purifier for vs PuroAir Air Purifier 100i Smart HEPA Air Purifiers
Updated August 2026 — BLUEAIR Blue Pure 311i Max Smart Air Purifier for wins on coverage and noise, PuroAir Air Purifier 100i Smart HEPA Air Purifiers wins on price.
The BLUEAIR Blue Pure 311i Max offers superior filtration and coverage, making it the better choice for larger spaces, while the PuroAir 100i is a budget-friendly option for smaller rooms.
Why BLUEAIR Blue Pure 311i Max Smart Air Purifier for is better
Filtration
Captures 99.97% of particles down to 0.1 microns
Coverage
Covers up to 1,800 sq ft
Noise Level
Operates quietly at 23-50 dB
Why PuroAir Air Purifier 100i Smart HEPA Air Purifiers is better
Price
Costs $74.99, significantly cheaper
Portability
Smaller and easier to move
Warranty
Includes a 2-year warranty
Overall score
Specifications
| Spec | BLUEAIR Blue Pure 311i Max Smart Air Purifier for | PuroAir Air Purifier 100i Smart HEPA Air Purifiers |
|---|---|---|
| Max Coverage | 1,800 sq ft | 550 sq ft |
| Filtration Type | HEPASilent | True HEPA |
| Noise Level | 23-50 dB | Not specified |
| App Control | Yes | Yes |
| Price | $168.99 | $74.99 |
Dimension comparison
Overview of the Products
The BLUEAIR Blue Pure 311i Max Smart Air Purifier and the PuroAir Air Purifier 100i present two distinct options for consumers seeking cleaner indoor air. The BLUEAIR model is priced at $168.99, while the PuroAir version is significantly cheaper at $74.99, making it about 56% less expensive. However, price isn’t the only factor to consider when choosing between these two air purifiers. Let's delve deeper into their features and performance to see how they stack up against each other.
Filtration Technology
The filtration technology used in both purifiers is a key differentiator. The BLUEAIR Blue Pure 311i Max employs HEPASilent dual filtration, capturing 99.97% of airborne particles down to 0.1 microns, including dust, pollen, pet dander, and smoke. This advanced filtration system operates efficiently, maintaining strong airflow while minimizing noise. In contrast, the PuroAir 100i features a True HEPA filter with a three-layer filtration system, which claims to filter up to 99.9% of pollutants, including dust and smoke. Although both purifiers are effective, the BLUEAIR has a slight edge in capturing finer particles due to its lower micron threshold.
Room Coverage and Efficiency
When it comes to room coverage, the BLUEAIR Blue Pure 311i Max is designed for larger spaces, capable of covering up to 1,800 square feet, which is ideal for bigger rooms or open-concept areas. In comparison, the PuroAir 100i is suitable for smaller rooms, filtering spaces up to 550 square feet. This means the BLUEAIR can clean significantly larger areas, making it a better choice for households with open layouts or larger living spaces.
Smart Features
The BLUEAIR Blue Pure 311i Max comes equipped with smart features that enhance user convenience. It includes built-in sensors that automatically adjust the fan speed based on pollution levels, ensuring optimal air quality at all times. Additionally, it can be controlled via the Blueair mobile app, allowing users to monitor air quality and manage settings remotely. The PuroAir 100i also offers smart capabilities, allowing users to control the purifier through the PuroAir app. However, the BLUEAIR’s more advanced sensor technology gives it a functional advantage in real-time air quality management.
Noise Levels
Noise levels are an important consideration for any air purifier, especially for use in bedrooms or nurseries. The BLUEAIR Blue Pure 311i Max has a QuietMark-certified performance, operating between 23 to 50 dB, making it an excellent choice for quiet environments. On the other hand, the PuroAir 100i does not specify its noise level, which could be a concern for those sensitive to sound. The lower noise operation of the BLUEAIR is particularly beneficial for nighttime use or in quiet settings.
Design and Aesthetics
Design plays a role in the overall user experience, and both purifiers bring their unique styles to the table. The BLUEAIR Blue Pure 311i Max features a modern Scandinavian design with a 360° air intake, allowing it to blend seamlessly into various home decors. Its compact and minimalist aesthetic makes it appealing for contemporary living spaces. The PuroAir 100i, while also portable and small, does not emphasize design in its features. For those who value aesthetics alongside functionality, the BLUEAIR may be more desirable.
Price Comparison
The pricing of these two air purifiers is one of the most significant differences. The BLUEAIR Blue Pure 311i Max is priced at $168.99, while the PuroAir 100i is available for just $74.99. This makes the PuroAir about 56% cheaper than its competitor. However, it’s essential to consider what you’re getting for that price difference. The BLUEAIR offers superior filtration technology, larger room coverage, and advanced smart features, which may justify its higher price for many consumers.
Customer Popularity and Ranking
In terms of customer popularity, the BLUEAIR Blue Pure 311i Max has a sales rank of 2065, indicating a solid level of market interest. Conversely, the PuroAir 100i has a lower sales rank of 25058, suggesting it is less popular among buyers. This difference in ranking may reflect disparities in customer satisfaction, brand trust, or product effectiveness, which are crucial elements for potential buyers to consider.
Which should you buy?
Deciding between the BLUEAIR Blue Pure 311i Max and the PuroAir Air Purifier 100i ultimately comes down to your specific needs and budget. If you're looking for a powerful air purifier that can cover larger spaces, filter finer particles, and provide smart features, the BLUEAIR is worth the investment at $168.99. However, if you're on a budget and need a more portable option for smaller rooms, the PuroAir 100i at $74.99 offers essential features at a significantly lower price. Consider your living space and air quality needs carefully before making a choice.

