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TSO-100 Perforated Diffuser

smoke extract fan

Systemair TSO square perforated ceiling diffuser, with PER plenum box as an accessory. The TSO can be shielded with the SSO accessory.

Ordering code


  • Ceiling plate (600x600) TPP
  • Shielding SSO
  • Plenum box PER with removable damper and test points

The TSO is a supply and exhaust air diffuser designed for ceiling assembly. The TSO has a perforated front plate and a connection sleeve fitted with a rubber seal tested for airtightness. The TSO has high induction which allows a maximum air temperature difference of dT 10 K. The distribution pattern can be altered with the SSO shielding accessory to one-, two- or three-way distribution. The distribution unit is adjustable.

The TSO is manufactured from steel with a white powdercoated finish (RAL 9010-80) and is available in the following sizes: ø 100, ø 125, ø 160, ø 200, ø 250, ø 315 and ø 400.

How to use for exhaust air
This device can be used for exhaust air.

The diffuser is installed directly onto the spiral duct and fixed with pop rivets. If the diffuser is fitted to a PER plenum box, there must be a straight length, 4 times the duct’s diameter, in front of the PER plenum box.

Our products

NGM Company is one of the largest suppliers of fans for use in various building ventilation applications.

NGM Company supplyes our clients with a full range of air terminal devices.

Regulating efficiently the natural environment, NGM Company's units can create silently the perfect indoor conditions; your conditions!