--- product_id: 48768749 title: "Air Vent 434399 Low Voltage Axial Extractor Fan & Transformer Kit (Timer Model) 100mm 4 Inch SELV 12V. Suitable for use within Zone 1" brand: "air vent" price: "€ 130.66" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.gr/products/48768749-air-vent-434399-low-voltage-axial-extractor-fan-and-transformer store_origin: GR region: Greece --- # 75 mΒ³/h airflow Low voltage 12V SELV safety Built-in run-on timer Air Vent 434399 Low Voltage Axial Extractor Fan & Transformer Kit (Timer Model) 100mm 4 Inch SELV 12V. Suitable for use within Zone 1 **Brand:** air vent **Price:** € 130.66 **Availability:** βœ… In Stock ## Summary > πŸ’¨ Elevate your air game with silent, smart ventilation! ## Quick Answers - **What is this?** Air Vent 434399 Low Voltage Axial Extractor Fan & Transformer Kit (Timer Model) 100mm 4 Inch SELV 12V. Suitable for use within Zone 1 by air vent - **How much does it cost?** € 130.66 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/48768749-air-vent-434399-low-voltage-axial-extractor-fan-and-transformer) ## Best For - air vent enthusiasts ## Why This Product - Trusted air vent brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Smart Run-On Timer:** Keeps air flowing post-light-off to prevent dampness - β€’ **Compact & Sleek Design:** Discreet 100mm fan fits seamlessly into modern ceilings - β€’ **Zone 1 Certified Safety:** Perfect for high-risk wet areas like showers with SELV low voltage - β€’ **Complete Transformer Kit:** All-in-one solution with separate transformer for easy installation - β€’ **Powerful 75 mΒ³/h Extraction:** Effortlessly clears moisture and odors for fresher spaces ## Overview The Air Vent 434399 is a 12V low voltage axial extractor fan with a built-in run-on timer, delivering 75 cubic metres per hour airflow. Designed for safe use in Zone 1 wet areas, it includes a separate transformer and supports ceiling mounting with compact dimensions. Ideal for bathrooms and kitchens, it ensures efficient moisture control with modern, quiet operation. ## Description Low voltage (SELV) 12V extractor fan with separate transformer. This fan is suitable for use within zone 1, shower enclosures etc, providing the transformer unit is located outwith zone 2, e.g. in an adjacent cupboard or loftspace. This model incorporates a run-on timer which operates in connection with the room light switch. When the light is switched on the fan starts, when the light is switched off the fan continues to run for the pre-set period. Permanent live, switched live and neutral wires (3 cores + earth) are required at the transformer position in order to function correctly. Suitable for ceiling mounting as long as the ducting is kept shorter than 1.5m. Fan dimensions: 160mm wide x 160mm tall x 10mm deep (beyond installed surface). 99mm diameter spigot, extends for 80mm. For connection to 100mm / 4\ ducting. Transformer dimensions: 149mm wide x 88mm tall x 67mm deep ## Features - 21 litres per second, 75 cubic metres per hour extraction rate - For use with fluorescent lamp wattages 4-8, 13, 15, 18-20, 25-65 & 80 Watt - Manufactured to BS EN 60155 ## Technical Specifications | Specification | Value | |---------------|-------| | Air Flow Capacity | 75 Cubic Metres Per Hour | | Asin | B01DTHRM2E | | Best Sellers Rank | 101,791 in DIY & Tools (See Top 100 in DIY & Tools) 193 in Bathroom Fans | | Blade Length | 100 Millimetres | | Brand Name | Air Vent | | Collection Name | Industrial Fans | | Colour | White | | Control Method | Touch | | Customer Reviews | 4.5 4.5 out of 5 stars (172) 4.5 out of 5 stars | | Electric Fan Design | Exhaust Fan | | Finish Type | Painted | | Included Components | Transformer (timer model) | | Indoor Outdoor Usage | Indoor | | Installation Type | ceiling mount | | Is Product Cordless | No | | Item Dimensions D X W X H | 6D x 6W x 6H centimetres | | Item Type Name | 434399 | | Item Weight | 1.16 Kilograms | | Manufacturer | Airvent | | Material | Acrylonitrile Butadiene Styrene | | Model Name | 434399 | | Model Number | 434399 | | Motor Type | DC | | Mounting Type | Window Mount | | Number Of Blades | 7 | | Number Of Packs | 1 | | Number Of Power Levels | 1 | | Part Number | 434399 | | Power Source | Corded Electric | | Recommended Uses For Product | Ceiling | | Room Type | Bathroom, Kitchen | | Size | 6.3 x 6.3 x 0.4 inches | | Special Features | Lightweight | | Specification Met | selv | | Standby Power Shutoff | 9.375 cubic metres per watt | | Style | Modern | | Unit Count | 1.0 count | | Voltage | 12 Volts | | Wattage | 80 watts | ## Product Details - **Brand:** Air Vent - **Colour:** White - **Electric fan design:** Exhaust Fan - **Mounting type:** Window Mount - **Power source:** Corded Electric - **Product dimensions:** 6D x 6W x 6H centimetres - **Recommended uses for product:** Ceiling - **Room type:** Bathroom, Kitchen - **Special feature:** Lightweight - **Style:** Modern ## Images ![Air Vent 434399 Low Voltage Axial Extractor Fan & Transformer Kit (Timer Model) 100mm 4 Inch SELV 12V. Suitable for use within Zone 1 - Image 1](https://m.media-amazon.com/images/I/51UnR08GFxL.jpg) ![Air Vent 434399 Low Voltage Axial Extractor Fan & Transformer Kit (Timer Model) 100mm 4 Inch SELV 12V. Suitable for use within Zone 1 - Image 2](https://m.media-amazon.com/images/I/81DGZKM1nQL.jpg) ![Air Vent 434399 Low Voltage Axial Extractor Fan & Transformer Kit (Timer Model) 100mm 4 Inch SELV 12V. Suitable for use within Zone 1 - Image 3](https://m.media-amazon.com/images/I/71DLHY-89sL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great but not exciting *by on Reviewed in the United Kingdom 25 August 2025* Fairly average unit, fast delivery, easy to install and works fine. Fan is low noise, good timed delay. Overall great, but it’s an extractor fan so won’t get too excited. ### ⭐⭐⭐⭐⭐ Ideal for bathrooms *by on Reviewed in the United Kingdom 27 November 2024* You have to use 12V systems near water, and this has run faultlessly from day one. Remember that the timer needs to be set to 20mins to make a difference. A little noisier than 240v ones of a similar price, but still pretty quiet. ### ⭐⭐⭐⭐ Excellent choice, good value for money. *by on Reviewed in the United Kingdom 31 October 2021* This unit is unbelievable as it was such low cost I fear it would be low quality. I was very wrong, it an excellent choice. I installed two months ago and it has matched or even out performed the original installed unit. It is a good choice, I only wish it had the humidity sense as well but , it works just fine on the timer. ## Frequently Bought Together - Airvent 434399 Low Voltage Axial Extractor Fan & Transformer Kit (Timer Model) 100mm 4 Inch SELV 12V. Suitable for use within Zone 1 - BG 804 TRIPLE POLE FAN ISOLATOR PULLCORD SWITCH --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/48768749-air-vent-434399-low-voltage-axial-extractor-fan-and-transformer](https://www.desertcart.gr/products/48768749-air-vent-434399-low-voltage-axial-extractor-fan-and-transformer) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-09-12*