The Macro Max AS moves more clean air than the 530S and the 338S put together. At 294 CFM it is rated for a living room of roughly 456 square feet, while the two smaller Dreos come in at 201 and 178 square feet on the same 4.8 air-change basis. Dreo's boxes blur this, since the small pair are marketed with one-air-change figures several times larger.
A household shopping for an open living space with pets can set the two cylinders aside. A bedroom has no use for the tower's size, its weight or its eighteen fan speeds.
The 530S and 338S converge on almost every line that describes a bedroom purifier. Both are compact. Each carries a True HEPA layer, a sensor, an auto mode, and app and voice control. The 530S edges ahead on airflow by a margin no sleeper will notice and adds a color-changing ambient lamp. The 338S keeps a plainer shell.
Neither small model comes with a published filter life or wattage. That pushes the choice between them out to replacement filter prices and to whether a night-light belongs in the room.
On the Macro Max AS, a washable pre-filter takes the hair load off the main cartridge, and a light strip down the front shows a live PM2.5 reading that shifts color with the air, so the tower's state is readable from across the room.
Editor’s note
The Macro Max AS is the most convincing Dreo of the three. An AHAM-verified figure puts it alongside Coway and Levoit towers on equal terms, and the rinseable pre-filter is the right answer for pet homes. Dreo calls the main layer high-efficiency, names no grade, and lists a six-month interval that looks short for a tower of this size.
Dreo rates both cylinders at 18 dB at the bottom of their range, about as quiet as the category gets, so either can run through the night beside a bed.
Between them, the 530S reads as the newer thinking, with a lamp aimed at children's rooms. The 338S has an aroma pad slot that is harmless and pointless in equal measure. In a bedroom neither cleans better than the other, and the lamp is the one thing you will notice every evening.
Category strengths
Dreo Air Purifier 530S
Dreo Air Purifier 338S
Dreo Air Purifier Macro Max AS
Spec wins (head-to-head)
5decisive specs
Dreo Air Purifier 530S 2
Dreo Air Purifier 338S 0
Dreo Air Purifier Macro Max AS 3
Why Dreo Air Purifier 530S?
A lighter build ?3.3 kg vs 5.7 kg
A more compact design ?390 mm vs 531 mm
Why Dreo Air Purifier 338S?
No standout advantages.
Why Dreo Air Purifier Macro Max AS?
A much higher CADR (smoke) ?294 CFM vs 130 CFM
A much higher coverage area ?456 sq ft vs 201 sq ft
Has washable pre-filter ?
Key real-world differences
The spec sheet pulls in both directions. These are the gaps big enough to shape the decision — with the actual figures, and what each one means in real-world use.
Coverage areaPerformance
201 sq ft vs 178 sq ft vs 456 sq ft — 2.6× more for the Dreo Air Purifier Macro Max AS
The room size the purifier is rated to clean effectively.
CADR (smoke)Performance
130 CFM vs 115 CFM vs 294 CFM — 2.6× more for the Dreo Air Purifier Macro Max AS
Clean Air Delivery Rate — how quickly smoke particles are scrubbed from the air.
Washable pre-filterFiltration
No vs — vs Yes — only the Dreo Air Purifier Macro Max AS has it
A rinseable pre-filter catches hair and large dust to extend filter life.
WeightDesign
3.3 kg vs — vs 5.7 kg — 42.1% less for the Dreo Air Purifier 530S
A lighter unit is easier to move between rooms.
Which one should you buy?
There is no single answer — it depends on what you will actually use it for. Match your priority to the pick below.
Best for performanceDreo Air Purifier Macro Max AS takes the category 100 to 27 — driven by coverage area (201 sq ft vs 178 sq ft vs 456 sq ft).
Best for designDreo Air Purifier 530S takes the category 100 to 16 — driven by weight (3.3 kg vs — vs 5.7 kg).
Top overall scoreDreo Air Purifier Macro Max AS tops the overall VS Score at 97 while winning 1 of 4 categories outright. That is on specifications alone: no current price is on record for every product here.
Where each one falls short
Dreo Air Purifier 530S
Washable pre-filter: No vs — vs Yes
4 specs are unreported (shown as Unknown) and excluded from its scores.
Dreo Air Purifier 338S
Coverage area: 201 sq ft vs 178 sq ft vs 456 sq ft
CADR (smoke): 130 CFM vs 115 CFM vs 294 CFM
8 specs are unreported (shown as Unknown) and excluded from its scores.
Dreo Air Purifier Macro Max AS
Weight: 3.3 kg vs — vs 5.7 kg
6 specs are unreported (shown as Unknown) and excluded from its scores.
What matters to you?
Drag the sliders to weight each category and re-rank the products to suit your priorities.
Performance
Filtration
Noise & power
Design
Smart features
Your ranking
Dreo Air Purifier 530SYour pick67
Dreo Air Purifier 338SYour pick66
Dreo Air Purifier Macro Max ASYour pick97
Score breakdown
Performance
Dreo Air Purifier 530S27
Dreo Air Purifier 338S11
Dreo Air Purifier Macro Max AS100
Decided by coverage area (201 sq ft vs 178 sq ft vs 456 sq ft) and CADR (smoke) (130 CFM vs 115 CFM vs 294 CFM).
Filtration
Dreo Air Purifier 530S83
Dreo Air Purifier 338S100
Dreo Air Purifier Macro Max AS100
Decided by washable pre-filter (No vs — vs Yes).
Noise & power
Dreo Air Purifier 530S100
Dreo Air Purifier 338S100
Dreo Air Purifier Macro Max AS—
Design
Dreo Air Purifier 530S100
Dreo Air Purifier 338S—
Dreo Air Purifier Macro Max AS16
Decided by weight (3.3 kg vs — vs 5.7 kg).
Smart features
Dreo Air Purifier 530S100
Dreo Air Purifier 338S100
Dreo Air Purifier Macro Max AS100
Performance
CADR (smoke) ?
130 CFM
115 CFM
294 CFM
Coverage area ?
201 sq ft
178 sq ft
456 sq ft
Air changes per hour ?
4.8
? Unknown (Dreo Air Purifier 338S)
4.8
Filtration stages ?
3
3
3
Filtration
True HEPA filter ?
✓Dreo Air Purifier 530S
✓Dreo Air Purifier 338S
? Unknown (Dreo Air Purifier Macro Max AS)
HEPA class ?
? Unknown (Dreo Air Purifier 530S)
? Unknown (Dreo Air Purifier 338S)
? Unknown (Dreo Air Purifier Macro Max AS)
Activated carbon filter ?
✓Dreo Air Purifier 530S
✓Dreo Air Purifier 338S
✓Dreo Air Purifier Macro Max AS
Carbon filter type ?
Sheet
Activated carbon layer
Activated carbon layer in the 3-in-1 cartridge
Washable pre-filter ?
✗Dreo Air Purifier 530S
? Unknown (Dreo Air Purifier 338S)
✓Dreo Air Purifier Macro Max AS
Filter life ?
? Unknown (Dreo Air Purifier 530S)
? Unknown (Dreo Air Purifier 338S)
6 months
Noise & power
Min noise level ?
18 dB
18 dB
? Unknown (Dreo Air Purifier Macro Max AS)
Max noise level ?
? Unknown (Dreo Air Purifier 530S)
? Unknown (Dreo Air Purifier 338S)
? Unknown (Dreo Air Purifier Macro Max AS)
Power consumption ?
? Unknown (Dreo Air Purifier 530S)
? Unknown (Dreo Air Purifier 338S)
? Unknown (Dreo Air Purifier Macro Max AS)
Sleep mode ?
✓Dreo Air Purifier 530S
✓Dreo Air Purifier 338S
✓Dreo Air Purifier Macro Max AS
Design
Weight ?
3.3 kg
? Unknown (Dreo Air Purifier 338S)
5.7 kg
Height ?
390 mm
? Unknown (Dreo Air Purifier 338S)
531 mm
Smart features
Air quality sensor ?
✓Dreo Air Purifier 530S
✓Dreo Air Purifier 338S
✓Dreo Air Purifier Macro Max AS
Auto mode ?
✓Dreo Air Purifier 530S
✓Dreo Air Purifier 338S
✓Dreo Air Purifier Macro Max AS
App control ?
✓Dreo Air Purifier 530S
✓Dreo Air Purifier 338S
✓Dreo Air Purifier Macro Max AS
Voice assistant ?
✓Dreo Air Purifier 530S
✓Dreo Air Purifier 338S
✓Dreo Air Purifier Macro Max AS
Filter replacement indicator ?
✓Dreo Air Purifier 530S
✓Dreo Air Purifier 338S
✓Dreo Air Purifier Macro Max AS
Timer ?
✓Dreo Air Purifier 530S
✓Dreo Air Purifier 338S
? Unknown (Dreo Air Purifier Macro Max AS)
Specs last verified October 21, 2026Dreo Air Purifier 530S: 18 of 22 specs verified (82%)Dreo Air Purifier 338S: 14 of 22 specs verified (64%)Dreo Air Purifier Macro Max AS: 16 of 22 specs verified (73%)Unverified specs show as Unknown — never estimated, never scored
Buy the Macro Max AS for a large living room, above all one shared with a shedding dog or cat, where verified airflow and a pre-filter you rinse under the tap earn the floor space it takes. Allergy buyers who want True HEPA on the filter should look at the small pair.
In a bedroom the 530S and 338S are close enough that the lamp and the replacement filter price should settle it. The 530S suits a child's room where a soft light earns its place. An adult bedroom or a home office is better served by the 338S, with its plain cylinder.
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