Best Budget Smart Air Purifier for a Bedroom or Office: Dreo 338S vs 530S vs 539AS vs Macro Max AS
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The short answer: The DREO Air Purifier 338S is the pick for a budget smart purifier at $99.99, with 856 sq ft coverage, 6 fan speeds and a 12-hour timer. Step up to the 539AS if you want more coverage (1079 sq ft) and a PM2.5 color indicator for $20 more, or the 530S if you want a 24-hour timer and 130 CFM CADR for $30 more.
- Best value: Air Purifier 338S — At $99.99 it is the lowest-priced pick here and still covers 856 sq ft with 6 fan speeds and a 12-hour timer. See price at dreo.com
- Best overall: Air Purifier 539AS — At $119.99 it covers 1079 sq ft, adds a PM2.5-related 4-color indicator and a 24-hour timer, and costs $20 less than the 530S. See price at dreo.com
- Best for larger rooms: Air Purifier 530S — At $129.99 it lists 967 sq ft coverage, 130 CFM CADR and 99.97% filtration efficiency down to 0.3 μm. See price at dreo.com
- Best premium: Air Purifier Macro Max AS — At $189.99 it is the top price in the family and includes an air quality indicator with a PM2.5-related 4-color display. See price at dreo.com
| Product | coverage sqft | timer | filter life | filter layers | rgb | Price now | 90-day low | Rating | |
|---|---|---|---|---|---|---|---|---|---|
| Air Purifier 338S | 856 sq ft | 12 Hours | — | — | — | $99.99 | — | 5.0 | dreo.com |
| Air Purifier 530S | 967 sq ft | 24 H | — | — | — | $129.99 | — | 5.0 | dreo.com |
| Air Purifier 539AS | 1079 | 24 H | 6-8 Months | 3 | PM2.5 Related: 4 Color | $119.99 | — | 5.0 | dreo.com |
| Air Purifier Macro Max AS | — | — | 6-8 Months | 3 | PM2.5 Related: 4 Color | $189.99 | — | — | dreo.com |
Air Purifier 338S
Pros
- 856 sq ft coverage suits a bedroom or office
- 6 fan speeds plus a 12-hour timer
- 3-in-1 HEPA filter at $99.99, the lowest price of the four purifiers listed
- Rated 5.0
Cons
- 115 CFM max air volume is the lowest airflow figure among the listed models
- No price history is available for this model
Who it's for: Anyone wanting a budget smart purifier with app control for a bedroom or office.
Air Purifier 530S
Pros
- 130 CFM CADR and 967 sq ft coverage suit a bedroom or office
- 99.97% filtration efficiency down to 0.3 μm particles
- 24-hour timer and a 5.0/5 rating from 2 reviews
Cons
- At $129.99 it costs $30.00 more than the Air Purifier 338S
- $10.00 more than the Air Purifier 539AS, which lists higher 1079 sq ft coverage
Who it's for: Anyone wanting a highly rated smart purifier with app control for a bedroom or office who can spend $129.99.
Air Purifier 539AS
Pros
- 1079 sq ft coverage, the largest of the four listed purifiers
- Sleep mode plus 1/2/3/4 gears and automatic mode for flexible operation
- PM2.5-related 4-color RGB indicator shows air quality at a glance
- 24-hour timer and 3 filter layers rated for 6-8 months of use
Cons
- At $119.99 it costs $20.00 more than the Air Purifier 338S
- No CADR or filtration-efficiency figure listed, unlike the 530S
Who it's for: Anyone wanting a wide-coverage smart purifier with sleep and auto modes for a large bedroom or office.
Air Purifier Macro Max AS
Pros
- 3-layer filter with a 6-8 month filter life
- Air quality indicator with PM2.5-related 4-color RGB display
- Costs $70.00 more than the Air Purifier 539AS and $60.00 more than the Air Purifier 530S
Cons
- At $189.99 it is the priciest of the four listed purifiers, $90.00 more than the Air Purifier 338S
- No coverage, CADR, fan speed or timer specs are listed for this model
Who it's for: Buyers who want a 3-layer filter with a 6-8 month lifespan and a PM2.5 color indicator and will pay the $189.99 premium for it.
How we chose
How we chose
We lined up the four Dreo purifiers and compared what each one actually lists: coverage, fan speeds, timers, filtration details and current prices. The DREO Air Purifier 338S covers 856 sq ft with 6 Levels of fan speed, a 3-in-1 HEPA Filter, 115 CFM of max air volume and a 12 Hours timer, at $99.99.
The DREO Air Purifier 530S lists 130 CFM CADR, 967 sq ft of coverage, 99.97 % filtration efficiency, particle retention down to 0.3 μm and a 24 H timer, at $129.99 — $30.00 more than the 338S. The DREO Air Purifier 539AS covers 1079 sq ft with 3 filter layers, a 6-8 Months filter life, Sleep plus 1/2/3/4 gears and Automatic modes, a PM2.5 Related 4 Color display and a 24 H timer, at $119.99, which is $20.00 more than the 338S and $10.00 less than the 530S.
The DREO Air Purifier Macro Max AS lists an air quality indicator, 3 filter layers, a 6-8 Months filter life and a PM2.5 Related 4 Color display, at $189.99 — $90.00 more than the 338S, $60.00 more than the 530S and $70.00 more than the 539AS.
Who should skip these
Skip the 338S if your room is larger than 856 sq ft. The 539AS covers 1079 sq ft for $20.00 more, and the 530S covers 967 sq ft for $30.00 more. The Macro Max AS is $90.00 more than the 338S if you want an air quality indicator.
If you don't want app-style smart features, none of these four is aimed at you. All four are app-controlled purifiers, and the 338S is the budget entry at $99.99.
If a 12-hour timer is too short, the 530S and 539AS both run a 24-hour timer, at $129.99 and $119.99. The 530S also lists 130 CFM CADR and 99.97 % filtration efficiency at 0.3 μm; the 539AS lists a PM2.5 color indicator and Sleep plus four gears and Automatic mode.
How to choose the right one
Start with the coverage number, since that is what ties a purifier to a room. The DREO Air Purifier 338S is rated for 856 sq ft, the 530S for 967 sq ft, and the 539AS for 1079. If your bedroom or office is smaller than the 338S figure, that model already covers it; if you want headroom, the larger two are the ones to weigh.
Then compare the controls you will actually use. The 338S gives you 6 Levels of fan speed and a 12 Hours timer. The 530S gives you a 24 H timer and 130 CFM CADR. The 539AS gives you a 24 H timer, Sleep plus 1/2/3/4 gears and Automatic mode, and a PM2.5-related 4-color indicator.
Price decides the rest. The 539AS costs $20.00 more than the 338S, the 530S costs $30.00 more, and the Macro Max AS costs $90.00 more.
Questions readers ask
Which Dreo purifier is the most affordable option?
The DREO Air Purifier 338S at $99.99. The 539AS costs $20.00 more, the 530S costs $30.00 more, and the Macro Max AS costs $90.00 more.
How much more do the larger models cost?
The 539AS costs $20.00 more than the 338S, the 530S costs $30.00 more, and the Macro Max AS costs $90.00 more. The 530S also costs $10.00 more than the 539AS, and the Macro Max AS costs $60.00 more than the 530S and $70.00 more than the 539AS.
Which model covers the largest area?
The 539AS at 1079 sq ft, ahead of the 530S at 967 sq ft and the 338S at 856 sq ft.
Do these purifiers have timers and sleep-friendly modes?
The 338S has a 12-hour timer, while the 530S and 539AS both have a 24-hour timer. The 539AS adds Sleep plus 1/2/3/4 gears and Automatic mode.
What do the ratings look like?
The 338S, 530S and 539AS each rate 5.0, and the 530S rating comes from 2 reviews.
Update history
- — Prices and availability refreshed
- — Prices and availability refreshed
- — First published
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