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Umbra acoustic lighting
With more than five square meters of highly absorbent surface, the luminaire solves the problem of room acoustics for four workstations and can replace conventional ceiling panels without restrictions.
⚠️ Note: This product is only suitable for rooms with sufficient height. The light emission is ideal at a height of 2.7 metres.
Lengte: 2220 mm
Breedte: 800 mm
Hoogte: 350 / 530 mm
100% PET (recycled material) Lighting System
ISO 354:2003 Acoustics — Measurement of sound absorption in a reverberation room
ISO 11654:1997 Acoustics — Sound absorbers for use in buildings — Assessment of sound absorption
ISO 20189:2018 Acoustics — Screens, furniture and loose objects intended for indoor use — Assessment of sound absorption and noise reduction of elements
based on laboratory measurements
ASTM C423-17 standard test method for sound absorption and sound absorption coefficients using the reverb chamber method
ASTM E795-16 Standard Practices for Assembling Test Samples During Sound Absorption Tests
For daily cleaning, we recommend an alcohol solution (75%), e.g. Pantasept.
If soiled by dust or fluff, use a feather duster or a regular feather duster
vacuum cleaner. In case of heavy contamination, treat the material with hydrogen peroxide.
Declare label, Cradle to Cradle, UL Environmental Product Declaration,
Member of US Green Building Council, Ecobau 1st Priority, Climmate-KIC,
VOC emissions in LEED EQ credit (low-emitting products), SCS Recycled
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