1 / 7BLUEAIR Signature SP3i Air Purifier, model 114645
BLUEAIR Signature SP3i is a corded air purifier with app controls and a listed coverage figure of 498 square feet. Its maker describes seven-stage HEPASilent filtration, OdorFence odour treatment, automatic operation and air-quality reporting. Listing area claims conflict, so confirm the intended room coverage before buying.
At a glance
- The feature description claims seven-stage HEPASilent filtration captures 99.97% of airborne particles down to 0.1 microns. This is a manufacturer claim, not an independently confirmed result.
- OdorFence is described as helping break down odours, gases and VOCs.
- The app is described as providing fan-speed, schedule and setting controls, with Auto Mode adjusting purification to indoor conditions.
- The manufacturer describes an air-quality indicator with five colour levels. The listing also claims operation as low as 19 dB, which differs from the listed 54 db noise level.
Reference price: $414.99
Price checked: Nov 13, 2026
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Pros and cons
Pros
- App-based controls and scheduling may suit buyers who want to adjust operation remotely.
- The described Auto Mode and colour air-quality indicator offer ways to monitor and adjust purification without relying only on manual settings.
- The manufacturer claims filtration for smoke, dust and allergens, alongside odour and gas treatment.
Technical specifications
14 specifications| Brand | BLUEAIR |
|---|---|
| Model | 114645 |
| Colour | Grey |
| Floor area | 498 square_feet |
|---|---|
| Filter type | Activated Carbon |
| Particle retention size | 0.1 micron |
| Filtration capability | Smoke, Dust, Allergens |
| Specification met | AHAM Certified |
| Control method listed | App |
|---|---|
| Power configuration | Corded |
| Wattage | 36 watts |
| Noise level listed | 54 db |
|---|
| Dimensions listed | 29.5D x 29.5W x 49.4H centimetres |
|---|---|
| Weight listed | 4.31 kg |
What to know before buying
Listing details to confirm
Listing details are inconsistent: the title says coverage up to 2,390 Ft², another title claim says 2,250 sq ft per hour, the feature text says 498 sq ft and 2,250 sq ft every hour, and the specifications list 498 square_feet. Noise is likewise listed as 54 db while the feature text claims operation as low as 19 dB. Confirm the applicable room-coverage and noise figures for this model before purchase. The supplied details also differ on filter terminology, describing Activated Carbon in the specifications and HEPASilent plus OdorFence in feature claims.
What’s in the box
Included- Air purifier
- Pre-installed filter
- User manual
Who is it for?
A good fit for
- Buyers seeking an app-controlled purifier with automatic operation and air-quality indication.
- Households looking for a purifier described for smoke, dust, allergens and odours, after confirming suitable room coverage.
Less suited to
- Buyers who need an unambiguous room-coverage or noise specification without confirming the conflicting listing details.
- Buyers who consider long filter life or consistent reliability essential, given customer concerns reported for both.

Customer reviews on Amazon
- 5 stars
71% 71% - 4 stars
9% 9% - 3 stars
3% 3% - 2 stars
3% 3% - 1 star
14% 14%
Customer feedback highlights perceived clean-air performance, air-quality reporting, quiet operation, appearance and ease of use. Other reported concerns include value, filter life and reliability, with some customers describing early failures and opinions on reliability varying. These are customer perceptions rather than confirmed product behaviour. For buyers considering app-based monitoring and the listed filtration claims, the positive comments may be relevant, but the concerns make filter upkeep and reliability worth weighing. The overall ratings are mostly five-star but include a notable one-star share, so they do not point to uniformly positive experiences.
Positive themes
- Customers describe the air-quality reporting and perceived air-cleaning performance positively.
- Customers report quiet operation, appealing appearance and ease of use.
Negative themes
- Some customer feedback questions the value for money.
- Customers raise concerns about filter life, including reports that filters did not last six months.
Mixed feedback
- Customer reports on reliability vary, including reports of units failing after a short time.
Frequently asked questions
What room size is the SP3i listed for?
The specifications give 498 square_feet, while the title and feature text state other coverage figures. Check the listing or manufacturer documentation for the coverage applicable to this model before relying on a room-size claim.
Can I control the purifier with an app?
App is the listed control method. The manufacturer says the app supports fan speed, schedules and settings, and describes an Auto Mode.
What does the listing say about noise?
The specification lists 54 db, while a feature claim says operation can be as low as 19 dB. These are inconsistent listing figures, so confirm the relevant operating condition.
What comes in the package?
The supplied contents list names the air purifier, a pre-installed filter and a user manual.

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