Armstrong ceiling system with a set of elements. The ceiling is acoustic.
In the set
1. Acoustic panels Armstrong on cables.
2. The lamp is open
3. smoke detector
4. Surveillance Camera
5. Ventilation grille
6. Air duct.
manufacturer’s website https://www.armstrongceilings.com/commercial/en-us/commercial-ceilings-walls/soundscapes-acoustical-ceiling-canopies.html#redirect_termSoundscapes+Acoustical+Canopies