CLH

CleanZone – Ceiling diffuser with HEPA-filter for supply air in clean rooms

Rectangular or circular duct connection
Size CDH/CLH 60 designed for suspended ceiling systems 600x600 with visible T-bars
Equipped with HEPA--filter H14 with gel seal (CLH), or dry seal (CDH)
Painted inside for easier cleaning
Measurement outlet for dip test and pressure above filter
Perforated or nozzle diffuser face
Standard colour White RAL 9003
- 5 alternative standard colours
- Other colours upon request

Calculate with your requirements

Design

Material and surface treatment

The unit is manufactured in sheet steel and painted on the exterior and interior.

Standard colour:
- RAL 9003, signal white, gloss 40
Alternative standard colours:
- RAL 9006, white aluminium, gloss 80
- RAL 9007, grey aluminium, gloss 80
- RAL 9010, pure white, gloss 40
- RAL 9005, jet black, gloss 35
- RAL 7037, dusty grey, gloss 30
Other colours available on request.

AIRFLOW - PRESSURE DROP - SOUND LEVEL*
CLH Size	Type	Velocity over the filter at 0,45 m/s
		Air flow q		Pressure drop	Sound level
		l/s	m3/h	Δp Pa	LA dB(A)
33-160-1	Perf.	41	148	150	<15
33-160-1	Nozzles	41	148	170	<20
60-315-1	Perf.	116	418	40	<15
60-315-1	Nozzles	116	418	55	<25
66-315-1	Perf.	167	601	145	<15
66-315-1	Nozzles	167	601	170	35
*Upper limit for the air flow is equivalent to 0.58 m/s across the filter’s nominal gross area. Data applies to 4-way horizontal spread pattern.

Nordic Swan listed

The product is listed in the database for building products that can be used in Nordic Swan Ecolabelled buildings.

Filter

Include Accessory documents

Document	Article	Document type	Date
Installation, commissioning, maintenance (pdf 2.22MB)	CDHb, CLHb	IOM Manual	08/06/2021
Overview - Clean-room diffusers (pdf 1.68MB)	CONDOR, CDH/CLH, OPL	Brochure	28/01/2021
Building product declaration (pdf 114.62kB)	CLHb1, CDH1	Quality	24/05/2018
Building product declaration (pdf 116.16kB)	CLHb2	Quality	24/05/2018
Commissioning guide - Air diffusers, VAV/CAV- & Commissioning dampers (pdf 7.73MB)	Air diffusers, VAV/CAV- & Commissioning dampers	IOM Manual	27/02/2025
Nano certificate (pdf 71.51kB)	Air diffusers	Quality	03/10/2023
Product description - Air diffusers & dampers (pdf 249.19kB)	Air diffusers & dampers	IOM Manual	19/10/2023
Overview - Air diffusers (pdf 4.28MB)	Air diffusers	Brochure	21/02/2025
Square ceiling diffuser with micro-filter (pdf 1.99MB)	CDHb, CLHb	Technical catalogue	03/12/2024

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