Ventilation product manufacturer Greenwood Airvac has launched Unity CV2GIP, which the company claims is the best performing dMEV fan in the UK at every installation application, with the best point at 0.16W/l/s. Greenwood says that in achieving best in class performance under SAP Appendix Q, Unity CV2GIP is a total dMEV solution. Suitable for any application, its modern and discreet …