MORENTO Smart Air Purifier for Home Large Rooms up to Review UK 2026
Quick verdict
Score: 8.6/10
Best for: Medium to large rooms up to 100 m²
Not for: Buyers on the tightest budget
Bottom line: A capable multi-stage air purifier with a CADR of 300 m³/h, held back mainly by a few practical limitations.
The MORENTO HY4866-WF smart air purifier is a mid-range option for improving indoor air in larger spaces, with a stated CADR of 300 m³/h that the manufacturer says is suitable for rooms up to 100 m², roughly equating to one air change per hour. In a quick verdict, the Morento HY4866-WF is a good fit where dust and pollen capture matters, targeting particles as small as 0.3 microns. Auto mode and scheduling support day-to-day use, and app and voice control add convenience, but performance depends on matching the room size to the manufacturer guidance.
Key specifications
| Item | Specification |
|---|---|
| Coverage | 100 m² |
| CADR | 300 m³/h |
| Filter | HEPA, 0.3 microns |
| Fan speeds | 4 speeds plus auto mode |
| Noise (sleep) | 24 dB(A) |
| Smart control | App + voice |
| Compatibility | Alexa/Google |
| Certifications | CARB, CE, EPA, ETL, FCC |
| Power | 50 W |
| Weight | 3.61 kg |
| Size | 19.4D x 33.5W x 44.5H cm |
Pros
- Strong airflow - CADR of 300 m³/h for rooms up to 100 m²
- HEPA filtration
- 4 fan speeds and sensor-driven auto mode
- Quiet operation (24 dB(A))
- Smart-home and app control (Smart Home Compatible)
Cons
- Filter replacement intervals not stated by the manufacturer
Design and Build Quality
This air purifier's HY4866-WF smart air purifier is designed for home floor use, with a compact footprint of 19.4 (D) x 33.5 (W) x 44.5 (H) cm and a weight of 3.61 kg, making it easy to move between rooms. The white casing has a clean, basic look, with controls designed for everyday use via the app and display. Build quality feels solid for the price range. For airflow, the front includes a double intake design, while filter access is provided through the housing.
CADR and Room Coverage
CADR and room coverage set the pace for how quickly the HY4866-WF can circulate indoor air, which is also the core of its practical home-use positioning. With a CADR of up to 300 m³/h, the morento HY4866-WF is stated to complete one air change per hour in rooms up to 100 m². That coverage is aimed at large living areas, and the purifier includes four fan speeds, allowing operation to be matched to comfort needs. Auto mode is also included for day-to-day convenience.
HEPA Filtration Performance
HEPA filtration performance is a core feature of the Morento, designed to capture particles down to 0.3 microns, including dust and pollen. As a HEPA air purifier, it uses multi-layer HEPA filtration with a double air intake design, allowing air to be drawn in from both sides and processed more quickly. The CADR is up to 300 m³/h, supporting cleaning for rooms up to 100 m². Actual results depend on room size, airflow paths, and how often the unit is used.
Noise Level and Sleep Mode
Noise levels matter most in the bedroom, and the MORENTO HY4866-WF is designed to run quietly in sleep mode. In sleep mode, it operates at less than 24 dB(A) using the lowest fan speed, with the display lights switched off, which helps minimise nighttime distractions. Airflow is intentionally reduced in sleep mode to maintain comfort while resting. Switching on the display exits sleep mode, so noise levels may increase. In day mode, it offers four fan speeds.
Smart Features and App Control
Beyond its quiet sleep behaviour, the MORENTO HY4866-WF offers smart control features for managing air cleaning without constant manual input. The unit supports app control and smart home compatibility, with voice control via Amazon Alexa and Google Assistant. Fan settings can be adjusted and air quality can be monitored using the display or the app, and an active schedule can be set for convenience. For manual operation, direct setting changes are available, with updates still requiring confirmation in the app.
Filter Life and Cost
As filter maintenance is an expected part of owning an air purifier, the MORENTO HY4866-WF is designed to make that part easier to track. Its HEPA filtration system captures particles down to 0.3 microns, and the smart display plus app can monitor filter life and prompt replacement. Users can check this on the screen or in the app during normal operation, which helps avoid running with a worn filter. Replacement costs depend on the specific The air purifier filter version, such as those listed for B0BMDYDXFK or B0C3GWNR29, and the Morento smart air purifier for home large rooms; price varies by retailer.
Energy Use
Energy use matters because the air purifier is rated at 50 watts, so power draw is linked to how long it runs and which fan speed it uses. Daily electricity cost depends on the chosen schedule, since it can be set to run continuously or only during set hours. The purifier offers four fan speeds plus an auto mode, and higher settings typically require more energy than the sleep mode. Running time can be reduced by using auto mode and allowing the display or app to guide adjustments, although it may still continue operating if air quality remains poor.
Cleaning and Maintenance
Cleaning and maintenance help the Morento HY4866-WF keep removing airborne particles at its stated HEPA performance, but the exact effort depends on how dusty the room gets and how long the unit runs. The main task is filter care. The display and the app track filter life, and they signal when replacement is needed. For day-to-day upkeep, unplug the unit, wipe the vents with a dry cloth, and clear dust from the intake areas. In auto mode, frequent running can increase filter usage, so scheduling helps reduce unnecessary cycles.
Who Is This Air Purifier For?
Who is the Morento smart air purifier for? It suits people who want HEPA filtration for dust and pollen in larger rooms up to 100 m², with a CADR of up to 300 m³/h that can complete one air change per hour in that space. It is practical for households that prefer app and display control, or voice control via Alexa and Google Assistant, and it supports scheduling. The air purifier also suits buyers who want filter-life monitoring, since the app and display track it. It may be unnecessary for smaller rooms, or for those who want only basic, non-smart operation.
Where to Buy in the UK
Where can someone buy the MORENTO HY4866-WF smart air purifier in the UK, and what should they check before ordering? Shoppers can look at major online retailers, including Amazon UK, for the Morento and the air purifier smart air purifier for home large rooms up to 100 m². Before buying, they should confirm the model number matches HY4866-WF, as bundle versions can differ. They should also check replacement filter availability using the listed Amazon filter searches (B0BMDYDXFK or B0C3GWNR29), and verify smart control options (Alexa and Google) if they use voice assistants.
Frequently Asked Questions
Does this air purifier really work?
Air purifiers do measurably cut airborne particles when sized to the room and run regularly. The Morento moves air at a CADR of 300 m³/h and is rated for rooms up to 100 m², so it works best matched to your room size and run on a higher setting when air quality dips.
Is the Morento HY4866-WF good for allergies and asthma?
Its HEPA filtration traps fine airborne particles, covering common triggers such as pollen, dust and pet dander. A purifier can ease symptoms indoors, but it is not a medical device - treat it as one part of managing allergies or asthma.
What room size does the air purifier cover?
This air purifier is rated for rooms up to 100 m², supported by a CADR of 300 m³/h. Real-world results depend on room layout and ceiling height.
Is the Morento quiet enough for a bedroom?
It is rated at 24 dB(A), with noise rising at higher fan speeds, and it covers rooms up to 100 m².
What are the downsides of the air purifier?
The main ongoing cost is filter replacement, and a purifier only cleans the air while it is running. It tackles airborne particles rather than gases or smells unless it includes a carbon stage.
How often do you replace the Morento's filter?
Filter life depends on usage and air quality, and a fixed interval is not always stated - replace it when airflow drops or odours linger, following the manufacturer's guidance.
Is the air purifier worth it?
If you have allergies, pets, or live near traffic or pollen, a purifier like the Morento HY4866-WF earns its place for rooms up to 100 m². Factor in filter replacement costs, and check the current Amazon UK price as it changes often.
What type of filtration does this air purifier use?
It uses HEPA filtration.