Revolving glazed in ventilator that is thermally broken by polyamide profiles strengthened with fibre glass. It contains a continuous adjustable sealing cylinder and an Airclip that can easily be detached for having simple cleaning. The revolving cylinder can easily be removed from the housing, without having to remove the vent from the window. The Airclip, with round perforations, is available in different variations and also serves as an insectgauze.

Performance	MultiAir 11	MultiAir 14	MultiAir 19	MultiAir 21
Airflow at 1 Pa in dm3/s.m (cfr EN 13141-1)	11,1	13,9	18,8	20,3
Airflow at 2 Pa in m3/h.m (cfr EN 13141-1)	57	71	96	108
Free Air performance in mm2	21000
Air sound insulation Rq,A in dB(A)	-4	-3	-2	-1
Sound absorption in open position Dne,w in dB (cfr. BS EN ISO 717-1)	27	27	26	28
Sound absorption in closed position Dne,w in dB (cfr. BS EN ISO 717-1)	39
Heat conduction coefficient	U = 3,628 W/m2.K, temperature factor (f) = 0,473
Wind and watertightness (cfr. EN 1027 & 2278)	Up to 650 Pa (up to 150m)
Rigidity and strength (cfr. EN 3360)	Highest class (1600 Pa)
Dimensions	Upper glazing		Transom glazing
Glass reduction	92 mm		/
Built-in height	107 mm		135 mm
Glazing thickness	26 / 30 / 32 / 36 / 42 / 46 / 48 / 52 mm		25 mm
Rebate size	19 / 23 / 25 / 29 / 35 / 39 / 41 / 45 mm		25 mm
Finishes
Control	Lever, cord or rod
Endcaps	Black, white, grey or cream
Finishes	F1 silver anodised All RAL colours (also twincolour)