Wilfa Cloud ultrasonic humidifier 3.5 l for rooms up to 40 m²
£36.99£61.99 at WilfaSave £25
The price at Wilfa was checked on 28 October 2026.
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Goes well together
Wilfa Cloud ultrasonic humidifier 3.5 l for rooms up to 40 m², £36.99
+ Shark NeverChange5 Compact Pro air purifier, £106.99
Total £143.98
£36.99
Wilfa Cloud ultrasonic humidifier 3.5 l for rooms up to 40 m²
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For the bedroom
Cloud is small enough for a chest of drawers or bedside table and lasts a night per fill. Place it at least 70 cm up, as Wilfa recommends.
Cosy on a dark evening
The fine mist rises out of Cloud and spreads through the room. Turn down the humidity level when the air feels just right.
Easy every day
Lift off the tank, fill it under the tap and put it back. An indicator shows when it's empty.
Product FAQ
Will there be white dust?
There can be. Ultrasonic humidifiers spread minerals from the water, and with hard tap water a fine white dust can settle around the unit. Aim the mist away from furniture and electronics and clean the tank regularly.
Is the mist warm? Can it stand in a child's room?
The mist is cool – the water isn't heated. Still, place it steadily, out of reach of small children, and unplug it before lifting off the tank or cleaning it.
What humidity should I aim for?
Indoors, 40–60 % relative humidity usually feels comfortable. With the radiators on in winter, indoor air can drop to 20–30 %. Set the level you want and let the humidity sensor do the work – above 60 % is rarely needed and can cause condensation on cold windows.
Are scented oils included?
No. Scented oils aren't sold here. Only use the aroma compartment or pad as the manual describes – never pour oil into the water tank unless the manufacturer explicitly says you can.
How do I clean it?
Empty the water and let the parts dry when you're not using it. Clean the tank and filter about once a week as the manual describes – with water and a soft brush, and descale when needed. Never leave old water standing for days.
How fast will it arrive, and can I change my mind?
Delivery options and times are on our Delivery page. You have a 14-day right of withdrawal and a 3-year right to complain – see the Returns page.
Description
A small, affordable humidifier for the bedroom or child's room. Wilfa Cloud emits up to 300 ml/h and covers rooms up to 40 m² according to Wilfa. With a full 3.5-litre tank it runs about 11 hours.
You adjust the humidity level with a control. When the tank is empty an indicator shows it and the unit switches off. There's an aroma function if you'd like scent.
Wilfa recommends placing Cloud on a table or shelf at least 70 cm above the floor so the mist has room to spread. According to Wilfa the model meets the EU safety standard for humidifiers (EN 60335-2-98). It used to be called HU-35W.
Features
- Up to 300 ml/h, rooms up to 40 m² according to Wilfa
- 3.5-litre tank – about 11 hours per fill
- Adjustable humidity level
- Indicator and automatic switch-off when the tank is empty
- Aroma function
Specifications
| Brand and model | Wilfa Cloud (601213, formerly HU-35W) |
|---|---|
| Technology | Ultrasonic, cool mist |
| Colour | White |
| Water tank | 3.5 l, removable |
| Humidification | Up to 300 ml/h |
| Room size | Up to 40 m² (according to Wilfa) |
| Run time per fill | About 11 hours with a full tank |
| Power | 25 W |
| Safety | Automatic switch-off when empty; EN 60335-2-98 |
Delivery and returns
You choose your delivery option at checkout:
- Standard delivery (tracked), 3–5 working days – £3.99
- Express delivery, 1–2 working days – £6.99
You have a 14-day right to cancel from the day you receive your item. Contact us within 14 days if you want to cancel your order.
Read more about returns and cancellationsWarranty and complaints
Your goods are covered by the Consumer Rights Act 2015: they must be of satisfactory quality, fit for purpose and as described. If something is wrong with your item, contact our customer service and we will help you.
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