OLOi exhaust air vent

OLOi is an extremely stylish exhaust air vent for suspended and coffered ceilings. It combines modern and stylish design with excellent air and sound properties. Thanks to OLOi’s patented sideways adjustability the product is also uniquely easy to install.

Air flow range

5-200 dm³/s, 18-720 m³/h

Duct sizes

Ø 125-315 mm


For ceiling installation

Color options

RAL 9016 white (matte), RAL 9005 black (matte)

Search for the product on our selection tool


The optimized perforation distribution and the rectangular perforations of the exhaust air vent OLOi provide excellent air and sound properties. For high airborne sound insulation we recommend the use of the type approved balancing plenum box FLO. The uncomplicated design of the OLOi makes it easy to clean. The entire front panel of the device can be removed for easy cleaning and sweeping.

OLOi Z is designed for T-grid ceiling structures with concealed grids.

One of OLOi’s most prominent properties is the patented sideways adjustability that makes installation work remarkably easy. Even if the duct installation places the diffuser off-centre in the ceiling opening, the sideways adjustability allows shifting it exactly into place without moving the ducts. This adjustability ensures an always tidy installation and may save a lot of installation time.

Watch a video about the sideways adjustability


  • Modern and stylish design
  • Uniquely easy installation and sideways adjustability
  • Very easy to clean
  • Excellent air and sound properties
  • Z model designed for suspended ceilings with the ceiling panels concealing the T-bar grid.

Product code

OLOi 250 400 + Z + FLO 200 / 250
1 2   3   4   5   6   7


1 = Exhaust air vent OLOi
2 = Exhaust air vent size
3 = Panel size of suspended/coffered ceiling
4 = Lowered diffuser part
5 = Balancing plenum box FLO
6 = Balancing plenum box duct size
7 = Balancing plenum box connection to diffuser

Quick guide




Dimensioning OLOi + FLO

The diagrams are not intended for making adjustments.

OLOi-125 + FLO-100-125 exhaust air


OLOi-125 + FLO-125-125


OLOi-160 + FLO-100-160


OLOi-160 + FLO-125-160


OLOi-160 + FLO-160-160


OLOi-200 + FLO-125-200


OLOi-200 + FLO-160-200


OLOi-200 + FLO-200-200


OLOi-250 + FLO-160-250


OLOi-250 + FLO-200-250


OLOi-250 + FLO-250-250


OLOi-315 + FLO-200-315


OLOi-315 + FLO-250-315


OLOi-315 + FLO-315-315

Ceiling construction options

OLOi is available for smooth ceiling surfaces and T-grid ceiling structures with both visible and concealed grids.

1. Smooth ceiling surface


2. T-grid ceiling with concealed grid 

Easy maintenance