Olsen & Smith Dehumidifier Review: Tackle Damp and Dry Laundry with HEPA Air Cleaning

Need a reliable way to handle damp laundry and mould-prone rooms? Olsen & Smith Dehumidifier removes excess moisture while filtering the air, so bedrooms and laundry areas feel drier and breathe easier overnight.

⚡ At a Glance

• Dehumidification Capacity: Up to 20 L/day (measured at 30°C and 80% RH), suitable for rooms up to 24 m²
• The pick for: Homes with damp bathrooms, laundry rooms and small basements needing fast moisture removal
• Lacks appeal for: Off-grid campervan owners relying on 12V leisure batteries; the 440 W AC input will rapidly deplete a battery through an inverter, risking shutdown during extended dry cycles

A compressor unit that removes moisture at up to 20 litres per day while also running an H13 HEPA filter and ioniser for cleaner indoor air. Quiet 42 dB operation and a 5.5 L tank or 1 m drain hose give flexible placement for homes and laundry areas.

📋 Technical Details at a Glance

Air Flow Capacity: 180 m³/h
Coverage (Floor Area): 24 m²
Dehumidification Capacity: 20 L/day (at 30°C, 80% RH)
Dimensions (H×W×D): 600 × 350 × 200 mm (incl. wheels)
Drainage Options: Removable 5.5 L tank or continuous drainage via 1 m hose

The drier home: Why 20 L/day capacity matters

The rated 20 L/day removal is measured at 30°C and 80% RH and suits rooms up to about 24 m²; a 440 W compressor drives the extraction while a 180 m³/h airflow moves humid air through the cold coil. User Scenario: placing the unit in a damp bathroom or laundry concentrates airflow and stops humidity from settling on walls and fabrics.

Faster moisture removal prevents mould growth on skirting boards and soft furnishings, keeping rooms usable sooner after showers or rainy days. Wheels and side handles let you move the appliance between spaces so multiple rooms benefit without extra equipment.

Does Laundry Mode Live Up to the Hype?

Laundry Mode increases fan speed and extraction for maximum dehumidifying around a clothes rack, while the 5.5 L removable tank and optional continuous drainage let the machine run unattended. Direct Impact: the concentrated airflow and higher extraction reduce the time garments remain damp and lower the chance of that lingering musty smell.

If you often battle damp towels and slow-drying clothes, Laundry Mode will shorten drying times and cut that stale odour. Use the 1 m drain hose for nonstop runs when a nearby sink or drain is available, otherwise expect to empty the tank periodically.

The Impact of HEPA Filter on Your Daily Air Quality

An H13 HEPA filter captures up to 99.95% of airborne particles, while the onboard ioniser encourages fine particles to clump and settle out of breathing zones; Air Clean mode runs filtration without active dehumidification for energy-conscious purifying. Direct Impact: allergy sufferers and those sensitive to dust will notice fewer airborne irritants during everyday use.

Cleaner air combines with lower humidity to reduce mould spores and musty odours, creating a noticeably fresher atmosphere in sleeping and living areas. The Air Clean option offers a cost-effective way to maintain air quality when heavy moisture removal is not required.

❓ Frequently Asked Questions

Q: How does continuous drainage work with the included hose?

A: Continuous drainage uses the supplied 1 m hose to remove collected water without emptying the tank, enabling unattended operation where a nearby drain exists. Pro-tip: route the hose straight into a sink or floor drain and check for kinks before long runs to avoid backups.

Q: What is the electrical consumption when running at full power?

A: The appliance is rated at 440 W, which reflects typical compressor and fan operation during active dehumidifying. Pro-tip: reduce energy use by selecting lower fan speeds, Sleep Mode or the 24-hour timer when conditions do not demand maximum extraction.

Q: Is the unit quiet enough for overnight use in a bedroom?

A: Noise is specified at 42 dB at full speed and a Sleep Mode reduces fan noise for night-time operation. Pro-tip: place the machine a little off the bedside and select Sleep Mode to keep background sound unobtrusive while maintaining humidity control.

🏆 Our Verdict

The machine suits homeowners who need reliable moisture control in bathrooms, laundry rooms and small basements while also improving airborne cleanliness. The control panel and modes feel intuitive, and the cabinet wipes down easily so the appliance keeps a tidy appearance on a landing or in a utility room. At a reasonable price for a combined dehumidifier and H13 HEPA filter, the build and features justify the outlay for anyone using it regularly.