Dyson Purifier Cool vs Medify MA-40
Side-by-side comparison of features, pricing, ratings, and alternatives.
The Dyson Purifier Cool combines a bladeless fan with a fully sealed HEPA H13 and activated carbon filtration system, capturing 99.95% of particles as small as 0.1 microns while also cooling the room using Dyson's Air Multiplier technology. A built-in laser particle sensor continuously monitors air quality and automatically adjusts purification intensity, displaying real-time pollutant levels including PM2.5, PM10, VOCs, and NO2 on the LCD screen or the Dyson Link app. Auto mode reacts to changing air quality throughout the day, while Night Mode dims the display and runs at a quieter airflow setting for undisturbed sleep, and the bladeless design is safer around children and pets than traditional fan blades.
The Medify MA-40 is a tower air purifier built around an H13 HEPA filter, a tighter grade than the H11 media used in many budget units, paired with a carbon layer for odors and a mesh pre-filter for hair and large debris. It is designed around airflow: the unit moves a lot of air for its size, which is how it covers medium to large rooms without a floor-standing chassis. Controls are a simple touch panel on the top of the unit with fan speed, a timer, a child lock and a filter-replacement indicator. The front is a tempered glass panel, which makes it look less like an appliance than most purifiers in its price range. There is no air-quality sensor or true auto mode on the base model, so fan speed is set manually rather than driven by measured particulate levels.
Around $549.99 MSRP.
- Genuinely dual-purpose (cooling + purifying)
- Effective, sealed HEPA filtration
- Useful real-time air quality data
- Safer bladeless design
- H13-grade HEPA at a price where H11 is more common
- Strong airflow for the footprint, so it clears medium and large rooms quickly
- Child lock and filter-change indicator are genuinely useful and often omitted at this price
- Glass front panel looks better than typical plastic purifier housings
- Premium price versus separate fan + purifier
- Replacement filters add ongoing cost
- Less powerful cooling than a dedicated large fan
- No air-quality sensor or true auto mode on the base model, so speed is set by hand
- Noticeably loud on the top fan speed
- Carbon layer is thin compared to dedicated carbon purifiers, so heavy odor loads outrun it
What reviewers say
Dyson Purifier Cool Reviews
4.7 (3)Does exactly what we need
Been a regular user of Dyson Purifier Cool for a while now. Safer bladeless design. One minor gripe: premium price versus separate fan + purifier, but it hasn't been a dealbreaker. Would recommend.
Highly recommend Dyson Purifier Cool
Been a regular user of Dyson Purifier Cool for a while now. Effective, sealed HEPA filtration. No major complaints so far. Would recommend.
Highly recommend Dyson Purifier Cool
I picked up Dyson Purifier Cool a while back and haven't looked back. Effective, sealed HEPA filtration. No major complaints so far. Would recommend.
Medify MA-40 Reviews
No reviews yet.
More alternatives & similar tools
Alternatives to Dyson Purifier Cool
View all →Alternatives to Medify MA-40
View all →Large-room smart HEPA purifier with swappable filter types for specific air problems.

HEPASilent purifier for large rooms with auto mode and washable pre‑filters.
The Verdict
AI-generated from listing dataThe Medify MA-40 offers solid H13 filtration and strong airflow at a lower, unspecified price, but lacks sensors and smart features; the Dyson Purifier Cool adds real‑time air‑quality monitoring, auto mode, and a bladeless fan at a premium price.
Key differences
- •Dyson includes a laser air‑quality sensor and auto mode; Medify requires manual fan speed control.
- •Dyson integrates with smart‑home platforms (Dyson Link, Alexa, Google); Medify has no connectivity.
- •Medify’s glass front and strong airflow are designed for medium rooms; Dyson combines cooling and purification but with less cooling power.
- •Dyson’s price is explicitly around $549; Medify’s price is not specified, implying it may be cheaper.
Air‑quality monitoring & automation
Dyson provides a laser sensor and auto mode; Medify has no sensor or auto feature.
Smart/home integration
Dyson links to its app, Alexa, and Google Assistant; Medify has no smart connectivity.
Noise level
Medify is described as noticeably loud on top speed; Dyson offers a Quiet Night Mode and no loudness claim.
Room coverage / airflow
Medify emphasizes strong airflow for medium‑large rooms; Dyson’s cooling is noted as less powerful.
Price & value
Dyson price is $549; Medify price not specified, so direct comparison isn’t possible.
Ease of maintenance
Medify includes a washable mesh pre‑filter and filter‑change indicator; Dyson filter‑change cost is noted but no indicator.
Physical footprint
Both are tower‑style units; exact dimensions not provided.
Choose Dyson Purifier Cool if…
Buyers who want integrated cooling, real‑time air‑quality data, and smart‑home control, and are willing to pay more.
Choose Medify MA-40 if…
Buyers who prioritize strong airflow and H13 filtration for medium rooms without needing smart features.
Common questions
Which unit is cheaper?
Dyson is listed at about $549; Medify’s price is not disclosed, so cost cannot be directly compared.
Do either of these units automatically adjust fan speed?
Only the Dyson has an auto mode that reacts to sensor data; Medify requires manual speed selection.
Can I control the Medify unit with a phone app or voice assistant?
No, Medify has no smart connectivity; Dyson can be controlled via the Dyson Link app, Alexa, or Google Assistant.
