Continuously running 100mm fanDesigned to comply with the latest Building Regulations Parts L1A and F 2021SAP PCDB listed with SFP’s down to 0.08 W/l/sAlmost silent operation, sound levels as low as 11.3dB(A) at 6l/sIPX5 rated, wall and ceiling mounted Zones 1, 2 and 3Low ceiling void - 56mm (100mm spigot)Easy to commission, fully adjustable variable control platform