







Greenwood CMEV.4E Centair Low Energy Continuously Running Whole House Extract System
CMEV.4E
Centair Low Energy Continuously Running Whole House Extract System – Energy Efficient, Quiet, and Easy to Install Ventilation
The Centair Whole House Extract System offers exceptional energy efficiency and quiet operation, ideal for providing reliable, low-cost ventilation in domestic environments. Engineered with advanced features to meet demanding SAP standards, it ensures improved air quality and comfort throughout your home.
- High Energy Efficiency: Achieves an impressively low Specific Fan Power (SFP) of just 0.16 W/l/s, ideal for SAP reward compliance.
- Guaranteed Installed Performance: Part of Greenwood's GIP product range, providing consistent ventilation performance post-installation.
- EC Motor Technology: Equipped with energy-efficient EC motors to significantly reduce running costs.
- Discreet Installation: Compact and unobtrusive, suitable for hidden installation in cupboards or loft spaces.
- Ultra-Quiet Operation: Extremely low noise levels starting from just 9dB(A) on trickle speed for undisturbed living environments.
- SMART Technology: Incorporates Greenwood SMART technology for simplified installation and enhanced ventilation efficiency.
Technical Specification
- Installation Type: Concealed (Cupboard or Loft)
- Motor Type: EC (Electronically Commutated)
- Specific Fan Power (SFP): From 0.16 W/l/s
- Sound Level: As low as 9dB(A) at trickle speed
- Additional Features: Greenwood SMART technology, GIP approved product
✅ Choose the Centair Extract System for quiet, energy-efficient whole house ventilation!

Range | Greenwood Centair |
Product | Whole House Filtration |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.