Mr.Zhang
Premium 4-Inch Bathroom Extractor Fan with Smart Overrun Timer - Reliable China Suppliers & Factory for Ventilation Solutions
High-Performance Ventilation Designed for Modern Spaces
Compact & Versatile Design
Features a short tube design, ideal for spaces with limited wall or ceiling clearance. Whether you need a wall-mounted unit or a bathroom exhaust fan ceiling installation, its modern design with colorful front panels is easy to wipe clean.
Unmatched Suction Power
Built with a 100% copper, ball bearing motor that is highly energy saving. It delivers a strong suction power with a high wind pressure of 49Pa (compared to the usual 25Pa). Even when connected to long-distance ducts, it can smoothly exhaust air and quickly expel moisture to prevent indoor mold.
Whisper-Quiet Operation
As a low noise bathroom exhaust fan, it operates quietly so it won’t interrupt a relaxing bath or your favourite playlist.
Built for Wet Environments
Fully water proof with an IP44 rating, making it suitable for kitchens, bathrooms, and toilets.
Product size
| Quantity (pieces) | sample order < 20 pcs | MOQ : 100PCS |
|---|---|---|
| Lead time (days) | 15 | 25 |
| Price (USD) | 19.18 | 14.95 |
Product structure
Finish
Advanced Features for Ultimate Moisture Control
Smart Humidistat
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.
Adjustable Overrun Timer
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.
Interval Operation Function
For continuous air quality control, the extractor fan runs for 1 hour every 4/8/12/24 hours (adjustment), ensuring efficient ventilation.
Advanced Features for Ultimate Moisture Control
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
Can this exhaust fan be installed on both walls and ceilings?
Yes. Featuring a compact short-tube design, this fan is highly versatile and suitable for both wall-mounted and ceiling installations, making it perfect for spaces with limited clearance.
How does the smart humidistat feature protect my bathroom?
The integrated humidity sensor automatically triggers the fan to start running whenever high moisture levels are detected in the room. This ensures continuous moisture extraction and prevents mold build-up, even if you forget to turn the switch on manually.
How long does the adjustable overrun timer run?
The overrun timer can be adjusted to run from 2 minutes up to 30 minutes after the unit has been switched off. This allows the fan to continue expelling damp air even after you have left the room.
Is this ventilation fan suitable for wet bathroom zones?
Absolutely. The fan carries an IP44 waterproof rating, making it highly safe and reliable for installation in wet environments such as bathrooms, toilets, and kitchens.
What are the options for wholesale pricing and OEM customization?
We offer tiered wholesale pricing starting at $19.18/pc for samples under 20 pcs, and $14.95/pc for bulk orders (MOQ 100 PCS). As a direct factory, our R&D team fully supports OEM/ODM customization requests, including custom color finishes and configurations like an exhaust fan with light.