Still unsure?
Directly from original manufacturer
Clean Air Optima humidifier CA-604W Smart Top Filling white
€111.75
€149.00
Image is for illustrative purposes only
Delivery included: Nov. 3 - Nov. 5
30-day free return guarantee
Scope of delivery:
+ Power Cable
Choose appearance
(Info)
Our products are professionally refurbished, to function identically to new products.
We offer devices in four appearance categories:
- Premium
Identical to new - with no visible signs of use - Excellent
Looks like new - with no visible signs of use, even up close - Very good
Lightly used - with subtle signs of use visible from 30cm - Good
Shows signs of use - like scratches or dents
Excellent
Colour
white
Included warranty from the seller:
12 months
Directly from original manufacturer
€111.75
€149.00 (-25%)
6 items left
Delivery included: Nov. 3 - Nov. 5
30-day free return guarantee
Scope of delivery:
+ Power Cable
Works like new
30-day free returns
Min 12-month warranty
We invest in environmental protection projects
Saves CO₂ vs new
Sale & shipping: Clean Air Optima | All Offers
Shipped from: Germany
Secure payments
- Brand
- Clean Air Optima
- Colour
- white
- Connectivity
- WiFi, Bluetooth
- Container Volume
- 3800 ml
- Dimensions
- 210 x 215 x 290 mm
- Miscellaneous
- App control
- Note
- Through the process of refurbishing the IPxx certification can no longer be guaranteed and, for example, water damage is therefore excluded from the warranty conditions.
- Power
- 30 Watts
- Weight
- 2800.0 g
- Warranty
- 12 months
Description
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.
Clean Air Optima humidifier CA-604W Smart Top Filling - Description
Breathe easier and create a healthier home environment with the refurbished humidifier CA-604W Smart Top Filling from Clean Air Optima. This advanced air treatment solution improves indoor air quality, helping you and your family feel more comfortable year-round. With smart connectivity and user-friendly features, it fits effortlessly into any home while supporting a more sustainable choice.
Why Choose the Refurbished CA-604W Smart Top Filling?
A comfortable home starts with clean, balanced air. This humidifier adds just the right amount of moisture to your living space, helping to prevent dry skin, ease allergy symptoms, and protect furniture from drying out. As a refurbished device, it’s professionally checked, cleaned, and guaranteed reliable - so you enjoy the benefits without compromise.
Key Features & Benefits
- Smart Control, Effortless Comfort:
- Control humidity levels from anywhere using WiFi or Bluetooth and the intuitive app.
- Top Filling Made Simple:
- Easily refill the large 3.8-litre tank without mess or hassle.
- Efficient & Quiet Operation:
- Enjoy powerful humidification with low energy use and minimal noise, ideal for bedrooms, living rooms, or home offices.
- Compact Yet Powerful:
- The space-saving design fits neatly into any room, while its robust performance covers large areas.
- Promotes Health & Well-being:
- Reduces dry air discomfort, supports better sleep, and helps maintain natural moisture in the air.
A More Sustainable Choice
Choosing a refurbished humidifier from refurbed means you actively reduce electronic waste and extend product life. It’s a practical way to enjoy modern comfort while lowering your environmental impact - a smart decision for you and the planet.
Warranty & Returns
- Minimum 12-month warranty for peace of mind
- 30 days free return policy - try it risk-free in your home
Frequently Asked Questions
How does the CA-604W Smart Top Filling help improve air quality?
The humidifier gently adds moisture to dry indoor air, helping to relieve dry skin, soothe airways, and maintain a balanced environment. This creates a more comfortable space, especially during heating season or in homes with air conditioning.
Is the humidifier difficult to use?
Not at all. With top filling and smart app control, refilling and adjusting settings is quick and straightforward. Connect via WiFi or Bluetooth and manage everything from your phone.
Where can I use this humidifier?
Thanks to its compact design and quiet operation, the CA-604W Smart Top Filling fits perfectly in bedrooms, children’s rooms, living areas, or offices - anywhere you want better air quality.
What makes a refurbished humidifier a better choice?
A refurbished humidifier from refurbed is professionally checked, cleaned, and restored, making it more reliable than used devices. It’s an eco-friendly way to improve your home’s comfort while supporting a more sustainable lifestyle.
Upgrade your air, support the environment, and enjoy peace of mind with the refurbished Clean Air Optima CA-604W Smart Top Filling humidifier.
The refurbed Process
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:
1. Supplier buys pre-loved tech
2. Data cleanse
3. Swap of faulty parts
4. External preparation
5. Sold via refurbed
Frequently asked questions
Refurbed is an online marketplace for refurbished electronics. All refurbed Clean Air Optima humidifier CA-604W Smart Top Filling 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.
refurbed Clean Air Optima humidifier CA-604W Smart Top Filling 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.
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.
refurbed Clean Air Optima humidifier CA-604W Smart Top Fillings 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 Clean Air Optima humidifier CA-604W Smart Top Fillings 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 Clean Air Optima humidifier CA-604W Smart Top Fillings 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 Clean Air Optima humidifier CA-604W Smart Top Fillings 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 Clean Air Optima humidifier CA-604W Smart Top Fillings 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.
Premium (AA-Grading)
Premium Clean Air Optima humidifier CA-604W Smart Top Fillings 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 Clean Air Optima humidifier CA-604W Smart Top Fillings 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 Clean Air Optima humidifier CA-604W Smart Top Fillings 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 Clean Air Optima humidifier CA-604W Smart Top Fillings 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.
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.
We offer a minimum 12-month warranty on all refurbed Clean Air Optima humidifier CA-604W Smart Top Filling. 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%.
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%.
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.
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
- 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
Reviews
Top categories
Featured products
€111.75
€149.00 (-25%)
Sign up for our newsletter!
Never miss an offer again.
Information about the use of personal data can be found in our Privacy policy.
Get the refurbed app
For iOS and Android
Confirm sign-up
Almost done: We’ve sent you a confirmation email
- © Refurbed Marketplace GmbH
- T&C
- Privacy Policy
- Imprint
- Legal Notices
- Cookie Policy