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Dyson Purifier Humidify+Cool Formaldehyde™ PH04 Air Purifier
white/gold

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Brand
Dyson
Colour
white/gold
Connectivity
WiFi, Bluetooth 4.0
Container Volume
5000 ml
Dimensions
210 x 923 x 155 mm
Miscellaneous
HEPA Air filter, Remote control, voice control, App control
Model (Version)
379491-02
Weight
8290.0 g

Your refurbed product

Refurbed products are more sustainable and up to 40% cheaper compared to a new device. Your trusted refurbed product comes with a minimum 12-month warranty and a 30-day free returns policy, with no questions asked.

Dyson Purifier Humidify+Cool Formaldehyde™ PH04 Air Purifier - Description

Breathe easy every day with the refurbished Dyson Purifier Humidify+Cool Formaldehyde™ PH04 Air Purifier. Designed for homes that value both comfort and clean air, this innovative device offers more than just purification - it brings a sense of well-being into every room. With advanced filtration and smart technology, you can create a healthier, fresher living space while making a more sustainable choice for the planet.

Why Choose the Refurbished Dyson Purifier Humidify+Cool Formaldehyde™ PH04?

Enjoy powerful air purification, precise humidity control, and cooling in one sleek device. Perfect for bedrooms, living rooms, or home offices, this Dyson air purifier adapts to your space and your lifestyle.

Key Features & Benefits

  • Triple Functionality: Purifies, humidifies, and cools air to maintain an ideal indoor environment year-round.
  • Advanced HEPA Filtration: Removes up to 99.95% of particles as small as 0.1 microns, including allergens and formaldehyde, so you can breathe cleaner air every day.
  • Smart Control: Connect easily via WiFi, Bluetooth, remote, voice, or app for effortless operation from anywhere in your home.
  • Precise Humidification: Keeps the air at a comfortable moisture level - no more dry skin or irritated eyes during winter.
  • Reliable & Sustainable: Professionally checked, cleaned, and tested for quality, this refurbished air purifier offers lasting performance without the environmental impact of buying new.

Everyday Comfort, Every Room

Bring peace of mind to your home with technology designed for real life. Whether you’re working, relaxing, or hosting friends, the Dyson Purifier Humidify+Cool Formaldehyde™ PH04 helps keep your air fresh and your environment comfortable.

Typical Questions & Usage Scenarios

Q: Can this Dyson air purifier help with allergies or asthma?
A: Yes, the HEPA filter captures common allergens like pollen, dust, and pet dander, helping to reduce allergy and asthma triggers indoors.

Q: Is this air purifier suitable for open-plan living spaces?
A: Absolutely! Its powerful purification and humidification features make it ideal for larger areas, ensuring consistent air quality throughout your home.

Q: How do I control the purifier when I’m not at home?
A: Use the Dyson Link app or voice control to adjust settings, monitor air quality, and schedule operation from anywhere.

Q: Does refurbished mean I compromise on quality?
A: Not at all. Each refurbished unit is thoroughly cleaned, tested, and guaranteed to perform reliably - plus, you’re making a more sustainable choice by extending the life of a quality product.

Peace of Mind Included

  • Minimum 12-month warranty: Shop with confidence, knowing support is always available.
  • 30 days free return policy: Try it at home, risk-free-if it’s not right for you, send it back easily.

Upgrade your home’s air quality and comfort - and do good for the planet - with a refurbished Dyson Purifier Humidify+Cool Formaldehyde™ PH04 Air Purifier from refurbed.

The refurbed Process

Every refurbed device is refurbished in up to 40 steps — taking it from used to like new again. Here are 5 key steps:

Refurbisher buys used electronics

1. Supplier buys pre-loved tech

Deleting the data from used electronic devices

2. Data cleanse

Refurbishing defective components

3. Swap of faulty parts

Polishing the exterior of used electronics

4. External preparation

Refurbisher sells the devices through refurbed marketplace

5. Sold via refurbed

What is refurbed?
Refurbed is an online marketplace for refurbished electronics. All refurbed Dyson Purifier Humidify+Cool Formaldehyde™ PH04 Air Purifier function like new, but are much cheaper. How is that the case? Once sourced, experts put our products through an up to 40-step refurbishment process to ensure that all products work and look like new. This results in us offering better value products that are also more sustainable.
Why should I buy my Dyson Purifier Humidify+Cool Formaldehyde™ PH04 Air Purifier from refurbed?
refurbed Dyson Purifier Humidify+Cool Formaldehyde™ PH04 Air Purifier are great value, at up to 40% cheaper than new. Equally as important is trust. We give you a minimum 12-month warranty on each device and a 30-day free trial period, during which you can return for a full refund. This means you save money, and get to test the device to make sure it works perfectly for you.
Why are refurbed Dyson Purifier Humidify+Cool Formaldehyde™ PH04 Air Purifiers so cheap?
Every refurbed partner is specialised in certain brands. They mostly buy exhibit and corporate phones in large quantities at low prices. Their specialisation makes the renewal processes very efficient, resulting in 100% renewed products that are up to 40% cheaper than new devices.
What exactly do the product grades mean?
refurbed Dyson Purifier Humidify+Cool Formaldehyde™ PH04 Air Purifiers work like new devices and therefore have no functional limitations. The visual condition of the devices can be selected based on your needs. What are the visual categories?

Premium (AA-Grading)
Premium Dyson Purifier Humidify+Cool Formaldehyde™ PH04 Air Purifiers are visually identical to new, with no visible signs of wear or use. No scratches, scuffs, dents, or blemishes on the body or screen.
Excellent (A-Grading)
Excellent Dyson Purifier Humidify+Cool Formaldehyde™ PH04 Air Purifiers have no dents, scratches or signs of wear visible from a distance of 30cm - neither on the body nor on the display.
Very Good (B-grading)
Very Good Dyson Purifier Humidify+Cool Formaldehyde™ PH04 Air Purifiers may have minimal dents, scratches or wear on the body that can be seen from 30cm away. There may be micro-scratches on the display/screen, but these are not visible when the display is on.
Good (C-Grading)
Good Dyson Purifier Humidify+Cool Formaldehyde™ PH04 Air Purifiers have visible signs of use such as scratches and/or dents on the body. There may be micro-scratches on the display/screen, but these are not visible when the display is switched on.
How does the 30-day free trial work?
If you want to return your product for any reason, you can return it free of charge within 30 days. To do so, contact our partner directly via your refurbed account and let them know that you would like to exchange or return your device. You will receive a free return label from our partner by email or in your refurbed account. Alternatively, you can contact our refurbed customer service. We will be happy to help you and contact our partner.
What are my warranty terms?
We offer a minimum 12-month warranty on all refurbed Dyson Purifier Humidify+Cool Formaldehyde™ PH04 Air Purifier. This covers all/any technical defects might occur during this period, and are not caused by your own fault.

Examples are:
- The device can no longer be switched on.
- The unit cannot find a network.
- The loudspeaker does not work.

The battery is also covered by the warranty. A distinction is made between wear and tear and technical defects. Technical defects are covered by the warranty and are characterised by abnormal behaviour. Abnormal behaviour could be, for example, that the device can only be charged up to 40%. Please note, your min. 12-month warranty is refurbed's voluntary commercial promise to you. This does not impact your statutory consumers rights
How can refurbed guarantee the quality of your Dyson Purifier Humidify+Cool Formaldehyde™ PH04 Air Purifier?
Only professional and certified partners are allowed to offer their electronic products via refurbed. We ensure this with ongoing quality tests and constant monitoring. Our partners are all located within the EU. This allows us to guarantee fast delivery times and optimal contact to always perform our best.
Which environmental protection projects do we invest in?
We have planted over 6.6 million trees since our foundin, and we are very proud! We realised that planting trees alone does not tackle all of the environmental issues we a passionate about, however. That's why we now also support projects that
- restore landscapes — ecosystems are repaired and jobs are created, including tree planting along the way
- remove carbon from the atmosphere and store it permanently
- recycle electronic waste and reuse materials

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