Premium 4-Inch Bathroom Extractor Fan with Smart Overrun Timer - China Supplier & Factory Quality
High-Performance Ventilation Designed for Modern Spaces
Product Size & Specifications
| Quantity (pieces) | Sample Order < 20 pcs | MOQ : 100 PCS |
|---|---|---|
| Lead time (days) | 15 | 25 |
| Price (USD) | 19.18 | 14.95 |
Finish Options






Advanced Features for Ultimate Moisture Control
Upgrading to an extractor fan with humidity sensor means automatic protection. When the humidistat detects high humidity in the room, this will trigger the fan to start automatically, regardless of whether the fan is switched on at the wall. This is highly useful where the bathroom might remain humid for a period of time after use.
A fan with a timer can be set to run after it has been switched off. The adjustable time is from 2 minutes to 30 minutes, meaning that humid air from a bathroom will continue to be extracted after someone has left the room. This design serves both convenience for the user and protection for the bathroom against moisture damage.
For continuous air quality control, the extractor fan runs for 1 hour every 4/8/12/24 hours (adjustment), ensuring efficient ventilation.
Wholesale & Custom Solutions
As a direct source factory, we supply wholesale exhaust fans with highly competitive pricing. Need customized solutions like an exhaust fan with light? Our R&D team can accommodate OEM/ODM requests based on your project needs.
Wholesale Tier Pricing
- Sample Order (< 20 pcs): $19.18 / pc (Lead time: 15 days)
- Bulk Order (MOQ 100 PCS): $14.95 / pc (Lead time: 25 days)
Technical Specifications
- Material: ABS plastic
- Voltage: AC 230 Volts
- Wattage: 9 watts
- Air Flow Capacity: 100 m3/h
- Color Options: Black / White / Silver / Golden / Rose Gold / Chrome
- Warranty: 3 years
- Weight (Product): 450 g
- Packing details: Outer box (24 pcs) 668 x 340 x 320 mm, Weight: 13 kg
Frequently Asked Questions
Yes. Featuring a compact short tube design, it is ideal for spaces with limited clearance and can be easily installed as a wall-mounted unit or a ceiling exhaust fan.
The built-in humidity sensor automatically triggers the fan to start operating when it detects high moisture levels in the room, regardless of whether the wall switch is turned on. This ensures continuous moisture control even after you leave.
The adjustable overrun timer can be configured to run from 2 minutes up to 30 minutes after the fan is switched off, ensuring all remaining humid air is successfully extracted.
Absolutely. The fan features an IP44 waterproof rating, making it highly safe and suitable for wet environments including kitchens, bathrooms, and toilets.
As a direct source factory, we support OEM/ODM requests including custom front panel colors (Black, White, Silver, Golden, Rose Gold, Chrome) and custom integrations like an exhaust fan with light.
The fan consumes only 9 watts of power while delivering an air flow capacity of 100 m3/h, powered by a highly energy-saving 100% copper ball bearing motor with 49Pa of wind pressure.





Mr.Zhang






