Air purifiers and dehumidifiers solve different indoor air problems. Purifiers filter allergens and airborne particles, while dehumidifiers reduce excess moisture that can contribute to mould, mildew and musty rooms. We compared five Devanti models sold by GoodBuyz, ranging from a dedicated HEPA purifier to compact and high-capacity dehumidifiers.
Our top picks
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Best dedicated air purifier: Devanti Air Purifier 4 Stage HEPA Filter
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Best quiet 2-in-1 option: Devanti dehumidifier and air purifier 2L black
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Best budget dehumidifier: Devanti Dehumidifier 600ML Air Purifier Black
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Best for heavier moisture and laundry: Devanti Dehumidifier 20L Air Purifier White
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Best mid-capacity 2-in-1 option: Devanti Dehumidifier 12L Air Purifier White
Quick comparison
| Product | Best for | Product type | Capacity or performance | Useful feature |
|---|---|---|---|---|
| Devanti 4 Stage HEPA Filter | Filtering airborne particles | Dedicated air purifier | CADR 180m³/h | H11 HEPA filter and air-quality sensor |
| Devanti 2L Black | Quiet moisture control with filtration | Dehumidifier and purifier | 500–700ml/day | Under 30dB with two drainage options |
| Devanti 600ML Black | Small spaces and lower budgets | Mini dehumidifier | 250–300ml/day | Automatic shut-off |
| Devanti 20L White | Damp rooms and indoor laundry | Dehumidifier, fan and clothes dryer | 20L/day | 6.5L tank and continuous drainage |
| Devanti 12L White | Everyday moisture and air-quality control | Dehumidifier and purifier | Up to 12L/day | Washable filter |
Detailed product recommendations
Devanti Air Purifier 4 Stage HEPA Filter

Why consider it: This is the only dedicated air purifier in the comparison. Its H11 HEPA and activated-carbon filters, air-quality sensor and 180m³/h CADR make it the clearest choice for shoppers focused on airborne particles rather than humidity.
Key specifications
Brand: Devanti
Product type: Air purifier
Connectivity: Remote control
Filtration: H11 HEPA and activated carbon
Performance: CADR 180m³/h
Maintenance: Filter-change indicator
What we like
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H11 HEPA and activated-carbon filtration
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Air-quality sensor with colour indicators
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Automatic, Normal, Efficient and Silent modes
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Filter-change indicator and included remote
Things to consider
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Designed for particle filtration rather than reducing humidity.
Verdict: The strongest choice here if you want to filter allergens and fine airborne particles. It is also the easiest model to monitor, thanks to its air-quality sensor and automatic mode.
Devanti dehumidifier and air purifier 2L black

Why consider it: Its under-30dB operating noise, compact 2L tank and photocatalyst filter suit bedrooms and smaller living spaces where both excess moisture and airborne allergens are concerns.
Key specifications
Brand: Devanti
Product type: 2-in-1 dehumidifier and purifier
Control: Included remote control
Filtration: Photocatalyst filter
Performance: 500–700ml/day
Coverage: Up to 30m²
Maintenance: Removable tank or continuous drainage
Noise: Under 30dB
What we like
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Quiet operation below 30dB
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Photocatalyst filter
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Tank and continuous-drainage options
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Included remote control and 24-hour timer
Things to consider
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Its 500–700ml daily extraction rate suits lighter moisture rather than serious dampness.
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The 2L tank will need manual emptying unless continuous drainage is set up.
Verdict: A practical option for quieter rooms where moderate moisture is the main problem. Its daily extraction rate is much lower than the 12L and 20L models, so it is better suited to lighter dampness.
Devanti Dehumidifier 600ML Air Purifier Black
Best for: Compact moisture control on a smaller budget.
Why consider it: This lightweight Peltier dehumidifier removes approximately 250–300ml of moisture per day and is designed for small spaces such as bedrooms, offices and dorm rooms.
Key specifications
Brand: Devanti
Product type: Mini dehumidifier
Control: Automatic shut-off
Performance: Approximately 250–300ml/day
Tank capacity: 600ml
Noise: Under 48dB
Maintenance: Detachable tank cover for cleaning
What we like
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Compact 1kg design
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Automatic shut-off when the tank is full
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Detachable tank cover for easier cleaning
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Suitable for a bedroom, office or dorm
Things to consider
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Its 250–300ml daily extraction rate is intended for small spaces and mild moisture.
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No HEPA or other dedicated air-purification filter is specified.
Verdict: The cheapest and most portable dehumidifier in the comparison. Choose it for mild moisture in a small space, not for HEPA filtration or serious damp problems.
Devanti Dehumidifier 20L Air Purifier White

Why consider it: With 20L/day moisture removal, a 6.5L tank and a clothes-drying mode, this is the most capable option here for persistent dampness and slow-drying indoor laundry.
Key specifications
Brand: Devanti
Product type: 3-in-1 dehumidifier, fan and clothes dryer
Control: Soft-touch control panel and 24-hour timer
Performance: 20L/day
Tank capacity: 6.5L
Noise: Under 48dB
Maintenance: Tank collection or continuous drainage
What we like
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Highest moisture-removal capacity in this comparison
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Large 6.5L water tank
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Dedicated clothes-drying function
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Castors, handles and continuous drainage
Things to consider
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Larger and heavier than the compact models at approximately 14.5kg.
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No dedicated air-purification filter is identified in the product specifications.
Verdict: The best fit for homes dealing with heavier condensation, dampness or indoor laundry. Its 20L/day capacity is likely excessive for occasional moisture in a small room.
Devanti Dehumidifier 12L Air Purifier White

Why consider it: This model sits between the compact units and the larger 20L machine. It combines 12L/day moisture removal with a washable filter, making it a more manageable everyday option for damp rooms.
Key specifications
Brand: Devanti
Product type: 2-in-1 dehumidifier and purifier
Control: LED display and 24-hour timer
Performance: Up to 12L/day
Tank capacity: 2.1L
Noise: Under 42dB
Maintenance: Washable filter and two drainage options
What we like
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12L/day maximum moisture removal
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Washable filter
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Quieter than the listed 20L model
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Castors and two drainage options
Things to consider
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Its 2.1L tank is relatively small compared with its maximum 12L daily extraction capacity, so continuous drainage may be more convenient.
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It costs more than the compact models, but the price reflects substantially greater moisture-removal capacity.
Verdict: A sensible middle-ground option for regular household dampness. It offers substantially more moisture removal than the compact models without the size and capacity of the 20L unit.
Which product should you choose?
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For airborne allergens and particles: Choose the Devanti 4 Stage HEPA Air Purifier.
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For quiet operation and lighter moisture: Choose the Devanti 2L Dehumidifier and Air Purifier.
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For mild moisture in a small room: Choose the Devanti 600ML Mini Dehumidifier.
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For regular household dampness: Choose the Devanti 12L Dehumidifier and Air Purifier.
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For heavier dampness or indoor laundry: Choose the Devanti 20L Dehumidifier.
What to compare before choosing
Connectivity
Compare app access, remote controls, alerts and integrations that are explicitly supported.
Compatibility
Confirm compatibility with the intended environment, system, materials or use case.
Maintenance
Review cleaning, consumables, replacement parts and other ownership requirements.
Product type
Compare the product formats and configurations that materially change suitability.
Performance
Compare published performance specifications using the same units and test conditions.
How we selected these products
We compared the specifications published by GoodBuyz and Devanti, including filtration, moisture-removal capacity, tank size, noise level, controls and drainage options. Prices and availability can change, so check the linked product page before purchasing.
Frequently asked questions
Q. Is an air purifier the same as a dehumidifier?
No. An air purifier filters particles from the air, while a dehumidifier removes excess moisture. Some combination models perform both functions, but their filtration systems and moisture-removal capacities vary.
Q. Which model is best for mould and dampness?
A dehumidifier can reduce the moisture conditions that encourage mould growth, but it does not remove existing mould. The 12L and 20L models provide the highest moisture-removal capacities in this comparison.
Q. Which model is best for allergies?
The Devanti 4 Stage HEPA Air Purifier is the strongest option in this comparison for airborne allergens because it uses an H11 HEPA filter, activated carbon and an air-quality sensor.
Q. Do I need continuous drainage?
Continuous drainage is useful when a dehumidifier runs regularly because it reduces manual tank emptying. It requires a suitable nearby drainage point.
Final recommendation
Choose according to the problem you need to solve. The 4 Stage HEPA model is the strongest option for filtering airborne particles. For excess moisture, the 600ml and 2L models suit lighter use, while the 12L and 20L models provide much greater daily extraction. Check the current GoodBuyz price and availability before ordering.


