Manufacturer

SONATECH GmbH + Co. KG

SONATECH is a southern German specialist for room acoustics and noise control, based in Ungerhausen (Bavaria). The company supplies acoustic solutions from a single source: consultancy, sound measurement, product and installation. The range spans the textile pure and pure+ ceiling and wall elements, the printable ConceptLine elements and QuietLine ceiling sails, Basotect and PUR foam absorbers, SkyLine acoustic columns and industrial solutions such as Cube, Baffel and MultiLane. The absorption values come from laboratory measurements based on the approach of DIN EN ISO 354. The materials are flame-retardant to DIN 4102 B1; for the Basotect foams, building-authority fire-protection test certificates are available.

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Datasheet

SONATECH pure Ceiling Element Baffle

Name: SONATECH pure Ceiling Element Baffle
Brand: SONATECH GmbH + Co. KG

pure Ceiling Element Baffle

CeilingFree-hanging

Description

The pure Ceiling Element Baffle is a frameless, vertically suspended strip absorber. It leaves the structural ceiling visible and is also suitable for thermally activated (concrete-core) ceilings, where closed ceiling rafts would reduce the cooling output.

Technical data

Material: PES fibres, recyclable

Surface: impact-resistant fibre surface with a felt look

Up to fire class: DIN 4102 B1

Colours: white, light grey mottled, dark grey mottled, black

Measurement data

Sound absorption

Reverberation chamber (ASTM C423 / ISO 354)· 2 variants

A_obj

0.33 m²

at 1 kHz

Frequency values

A_obj per ISO 354 · octave band (m²)

f (Hz)	125	250	500	1k	2k	4k
A_obj	0.06	0.10	0.15	0.33	0.42	0.43

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Compare		Value
	H 240 × B 0.1 in	A_obj0.33m²
	H 240 × B 0 in	A_obj0.17m²

Institute: Müller-BBM, Planegg

Measurement date: 2021-10-28

Distance: 3.9 in

Measured values as a table (2 measurements)

SONATECH pure Ceiling Element Baffle: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-up	NRC	125 Hz	250 Hz	500 Hz	1000 Hz	2000 Hz	4000 Hz
H 240 × B 1.000 mm · 100 mm (A_obj, m²)	–	0.03	0.05	0.07	0.17	0.21	0.22
H 240 × B 2.000 mm · 100 mm (A_obj, m²)	–	0.06	0.10	0.15	0.33	0.42	0.43

Measured values as a table (2 measurements)

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Last updated: 09/11/2026