Shipping

We offer FREE shipping across Australia (capital cities and major metro areas) on all treadmills, cross trainers, exercise bikes, rowers, weight machines, and iFIT products. Please note we do not deliver to islands.
 

Orders are usually dispatched within 1–2 business days from our Sydney or Brisbane logistics centres. Small items are sent via Australia Post; larger items are delivered by courier.
 

Approximate delivery times:

- NSW / ACT Metro: 3–5 business days

- VIC / QLD Metro: 5 business days

- SA Metro: 6–8 business days

- WA Metro: 8–10 business days
(Regional areas may take longer.)
 

You will receive a tracking number once your order ships. Our courier will contact you to arrange a convenient delivery time. Standard delivery is to your door; installation services are available by request.

100% Money-Back

All Longwell products are covered by Australian Consumer Law guarantees. You are entitled to a refund or replacement for a major fault, and repairs or replacements for minor faults within a reasonable time.
 

Please note:

- We do not offer change-of-mind returns.

- Claims require proof of purchase.

- If a returned product is found not to be defective, freight and handling costs may apply.

- In special cases where a refund is granted outside of ACL obligations, a restocking fee of up to 10% of the purchase price may be applied.
 

For more details, please see our Warranty Policy or contact Longwell Support.

Warranty

Your air purifier is protected by a 2-year manufacturer warranty, covering:
 

Parts and labour

Manufacturing defects

Electrical faults
 

This warranty ensures reliable long-term performance and peace of mind.

Trustpilot: 7 reviews

Dyson Purifier Big Quiet Formaldehyde BP04

$1,199.00 AUD
$1,799.00 AUD
Title

Experience powerful whole-room purification with long-range airflow that reaches up to 10 metres. This advanced HEPA H13–sealed purifier captures 99.95% of ultrafine particles, allergens, gases and even destroys formaldehyde — all while operating quietly. 

With intelligent auto-sensing, multiple airflow angles, breeze mode, and real-time LCD monitoring, it delivers cleaner, fresher air for large spaces with effortless control.

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Only 7 left

Quantity

Shipping

We offer FREE shipping across Australia (capital cities and major metro areas) on all treadmills, cross trainers, exercise bikes, rowers, weight machines, and iFIT products. Please note we do not deliver to islands.
 

Orders are usually dispatched within 1–2 business days from our Sydney or Brisbane logistics centres. Small items are sent via Australia Post; larger items are delivered by courier.
 

Approximate delivery times:

- NSW / ACT Metro: 3–5 business days

- VIC / QLD Metro: 5 business days

- SA Metro: 6–8 business days

- WA Metro: 8–10 business days
(Regional areas may take longer.)
 

You will receive a tracking number once your order ships. Our courier will contact you to arrange a convenient delivery time. Standard delivery is to your door; installation services are available by request.

100% Money-Back

All Longwell products are covered by Australian Consumer Law guarantees. You are entitled to a refund or replacement for a major fault, and repairs or replacements for minor faults within a reasonable time.
 

Please note:

- We do not offer change-of-mind returns.

- Claims require proof of purchase.

- If a returned product is found not to be defective, freight and handling costs may apply.

- In special cases where a refund is granted outside of ACL obligations, a restocking fee of up to 10% of the purchase price may be applied.
 

For more details, please see our Warranty Policy or contact Longwell Support.

Warranty

Your air purifier is protected by a 2-year manufacturer warranty, covering:
 

Parts and labour

Manufacturing defects

Electrical faults
 

This warranty ensures reliable long-term performance and peace of mind.

Premium Long-Range Air Purification for Large Spaces

At Longwell, we deliver high–performance air-cleaning technology built for oversized rooms and open living areas. This advanced purifier projects purified air over 10 metres, captures 99.95% of ultrafine particles, and neutralises formaldehyde at a molecular level — all while operating with impressively low noise. With intelligent sensing, powerful long-range airflow, and seamless whole-room circulation, it ensures your environment stays cleaner, fresher, and healthier every day.

Smart Large-Room Purification

Engineered for big spaces, this purifier uses cone-aerodynamic airflow to project a concentrated jet reaching over 10 metres, ensuring full-room circulation. 

Intelligent auto mode constantly monitors air quality, adjusting performance only when needed to maintain clean air efficiently.

Advanced Filtration & Air Safety

A fully sealed HEPA H13 filtration system captures allergens, ultrafine particles, gases, and odours — while the advanced catalytic process destroys formaldehyde at a molecular level. 

With a whole-machine HEPA seal, everything trapped stays locked inside.

Quiet, Customisable Comfort

Even at maximum airflow, the purifier operates quietly at just 56 dBA

Choose between multiple projection angles (0°, 25°, 50°) or activate Breeze Mode for natural airflow variation. A real-time LCD screen displays live air-quality data, and filters can be replaced hygienically with a single click.

Specifications

Performance

Projects purified air over 10 metres, ideal for large rooms up to 100m²

Captures 99.95% of ultrafine particles, allergens, gases & odours

HEPA H13 filtration — whole-machine sealed system

Quiet operation: just 56dBA at full power

Breeze Mode simulates natural airflow

Auto Mode adjusts purification automatically to save energy

Tech & Control

Air Multiplier™ long-range projection

Real-time LCD air-quality display

Intelligent sensors analyse pollutants every second

Adjustable airflow angles: 0°, 25°, 50°

Fully automatic purification with live reporting

Easy, hygienic one-click filter replacement

Remote control included (button battery warning)

Design & Build

Cone aerodynamics for focused, long-distance airflow

Sealed airflow + filtration system meeting HEPA H13 standards

Engineered for quiet, efficient performance

Designed for large open spaces and whole-room circulation

Activated carbon filter + HEPA H13 filter included

Included in the Box

1 × Air Purifier

1 × HEPA H13 Filter

1 × Activated Carbon Filter

1 × Remote Control

Customer Reviews

Based on 9 reviews
89%
(8)
11%
(1)
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V
Vasquez

This purifier has made a massive difference in my home. I chose it mainly because of the formaldehyde-destroying feature

M
Mercer

The 10-metre airflow reach actually works, which is rare for purifiers.

S
Sophie Grant

I’ve been using the Dyson Purifier Big Quiet Formaldehyde for a little over a month now, and it has completely transformed the air quality in my home.

G
Gray

The air smells cleaner, and the device reacts instantly to cooking fumes or dust.

E
Emily N

The difference in air quality is incredible. I have allergies, and within a week of using this Dyson, my symptoms dropped dramatically.

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