# Humidifier Philips HU4210/04 Ultrasonic 3.5 L White, 3 W, AC 100–240 V

**URL:** https://aio.lv/en/product--philips-hu421004--12241778
**Data updated:** 2026-05-21 21:02 (EEST)
**Category:** Air humidifiers
**Manufacturer:** Philips
**Manufacturer code:** HU4210/04
**EAN:** 8720389071874
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 95.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 78.92 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--philips-hu421004--12241778

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Monday | free |
| Pickup points | 29.06.2026 | 1.99 EUR |
| Courier delivery to door | 29.06.2026 | 4.99 EUR |

## Summary description

Philips HU4210/04 is an ultrasonic humidifier with a 3.5 L water tank, 3 W power consumption and AC 100–240 V supply. Made of plastic in white finish, it has a 1.5 m cord and compact dimensions (219.6 × 222.2 × 334 mm). Designed to increase indoor humidity for home or office use, improving comfort and reducing dry air symptoms.

## Long description

Philips HU4210/04 Ultrasonic 3.5 L is a compact white tabletop humidifier designed to increase indoor air moisture in homes and small offices. The unit features a 3.5 litre top-fill water tank and ultrasonic NanoCloud humidification to deliver fine water vapour with reduced bacterial release. With simple controls and quiet operation, the humidifier supports continuous use to improve comfort and help reduce symptoms associated with dry indoor air.
Advantages
Ultrasonic NanoCloud technology produces very fine vapour while minimising the release of bacteria and preventing visible white dust or wet spots on surfaces. The device provides up to 300 ml/h humidification output and a runtime of up to 21 hours from the 3.5 L tank, allowing prolonged continuous operation with low power consumption (around 3 W). Multiple fan speeds plus an automatic mode and a dedicated sleep setting enable quiet night-time use. A top-fill design, washable components and a long-life filter simplify maintenance.
Suitable for
Maintaining comfortable humidity in living rooms and bedrooms
Reducing dry-skin, dry-eyes and throat irritation caused by dry indoor air
Humidifying rooms up to approximately 44 m²
Use in children's rooms where lower bacterial release is preferred
Aromatherapy with added essential oils (use designated compartment)
Key specifications
Humidification method: ultrasonic with NanoCloud technology
Maximum output: up to 300 ml/h
Water tank capacity: 3.5 L (top-fill)
Coverage area: suitable for rooms up to ~44 m²
Fan speeds: 3 manual speeds plus automatic setting
Noise level: sleep mode down to approximately 6 dB
Power consumption: low, typical maximum around 3 W
Runtime: up to 21 hours continuous operation
Filter: long-life filter with service interval up to ~6 months
How to use
Remove the top-fill water tank, fill it with tap water and securely replace the lid. Place the humidifier on a stable, level surface, plug into AC 100–240 V supply and select the required fan speed or automatic mode to reach the desired humidity. For night-time operation, select sleep mode to minimise noise. If aromatherapy is required, add a few drops of essential oil to the designated aroma compartment only. Follow the maintenance schedule to clean washable parts and replace the long-life filter as needed to maintain performance.
Usage recommendations
Position the humidifier on a stable, level surface away from direct sunlight and heat sources and allow several centimetres of clearance around the unit. Use tap water for routine operation and perform regular cleaning to prevent buildup. When using essential oils, follow the manufacturer’s guidance for amounts and clean the aroma compartment regularly to avoid residue. Monitor indoor humidity with a hygrometer and aim for comfortable levels (typically 40–60%) to prevent over-humidification.

## Specifications

### Design

| Feature | Value |
|---|---|
| Product colour | White |
| Water level indicator | Yes |
| Cord length | 1.5 m |
| Housing material | Plastic |
| Built-in display | Yes |

### Technical details

| Feature | Value |
|---|---|
| Noise level | 25 dB |
| Water tank capacity | 3.5 L |
| Number of speeds | 3 |
| Control type | Touch |
| Country of origin | China |
| Auto power off | Yes |
| Evaporation technology | Ultrasonic |
| Suitable for room area up to | 44 m² |
| Air purification capability | No |
| Removable filter | Yes |
| Operating time | 21 h |
| Timer duration (maximum) | 12 h |
| Timer duration (minimum) | 1 h |
| Humidification capacity | 300 ml/h |
| Sleep mode | Yes |
| Filter life (max) | 6 month(s) |
| Automatic mode | Yes |
| Timer | Yes |
| Humidity sensor | Yes |
| Air quality feedback | Color ring, numerical |
| Warranty period | 2 year(s) |
| Dangerous goods | No |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 1.43 kg |
| Package weight | 2350 g |
| Height | 334 mm |
| Width | 219.6 mm |
| Depth | 222.2 mm |
| Package depth | 265 mm |
| Package height | 390 mm |
| Package width | 265 mm |

### Features

| Feature | Value |
|---|---|
| Connectable to internet | Yes |

### Power

| Feature | Value |
|---|---|
| Power supply type | AC |
| Power | 3 W |
| AC input voltage | 100-240 |

## FAQ

### How much does the Philips HU4210/04 Humidifier 3.5 L cost, and is it available for purchase?

The price is 95.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 73 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Monday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Philips HU4210/04 Humidifier 3.5 L be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Philips products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Philips service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: water tank capacity, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/12241778/68144481_large.webp