
National Ventilation MON-DMEV100HT Monsoon Continuous Running Humidistat & Adjustable Timer Fan, 100mm / 4 Inch
MON-DMEV100HT
Monsoon 100mm Humidistat & Timer Fan – Smart, Silent Ventilation with Adjustable Controls
The Monsoon 100mm (4 inch) Continuous Running Fan with Humidistat and Timer is built for moisture-prone environments such as kitchens, bathrooms, and utility rooms. Offering intelligent humidity sensing and customisable run-on time, this fan ensures optimum indoor air quality while maintaining low energy consumption and near-silent operation.
- Smart Humidistat Control: Features an adjustable dynamic humidity sensor that responds to ambient moisture levels for automatic boost activation.
- Customisable Timer: Adjustable overrun timer between 1–30 minutes ensures thorough extraction after use.
- Adjustable Trickle & Boost Speeds: Set trickle airflow between 5–30 l/s, with a boost of up to 35 l/s for adaptable performance.
- Ultra Quiet Operation: Runs at just 13 dBA on trickle mode, delivering effective ventilation without unwanted noise.
- IPX5 Rated: Suitable for installation in Zone 1, ideal for wet rooms and splash zones.
Technical Specification
- Model: Humidistat & Timer
- Size: 100mm / 4 Inch
- Airflow: Adjustable 5–30 l/s trickle, 35 l/s boost
- Sound Pressure Level: 13 dBA (trickle mode)
- IP Rating: IPX5 (Zone 1 compliant)
✅ Upgrade to the Monsoon Humidistat & Timer Fan for automated, energy-efficient moisture control in domestic settings!
C/w Humidistat | Y |
C/w Pullcord | N |
S4 - Size | 100mm / 4 Inch |
Product | Domestic Fans |
Type | DMEV & Continuous Running |
Ingress Protection | IPX5 |
Voltage | 230/240 V |
C/w Pir | N |
C/w Timer | Y |
Shape | Round |
Maximum Sound Power Level | 11 dB |
Neon Indicator | N |
Max Litres Per Second Rate | 25 L/S |
C/w Backdraught Shutter | Y |
Delivery Costs
Our standard delivery charge to UK mainland addresses is £5.90 ex-VAT.
Take advantage of FREE* Delivery when you spend over £100 (per order) ex-VAT.
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12.00 ex-VAT.
Solar Panels, Batteries and Inverters
Due to their size all solar panels, batteries and inverters orders up to 50 qty will be despatched on a pallet and incur a £120** ex-VAT delivery charge.
**£180 ex VAT to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes.
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