The self adjusting air-inlets ISOLA 2 are used for self-adjutsing ventilation systems and humidity-controlled ventilation systems type A (Système ALIZÉ III - Atech N°14/07-1194).

• Self-adjusting acoustic air-inlets range ISOLA 2. 22, 30 and 45 m³/h
• Guarantee a wall attenuation of 30 dB
  - Group ESA4 (Dn,e,w + Ctr ≥ 36 dB) for ISOLA 2. 45
  - Group ESA5 (Dn, e, w + Ctr ≥ 39 dB) for ISOLA 2. 22, ISOLA 2. 30 and ISOLA 2. 45 RA
• ISOLA 2. 22 RA and ISOLA 2. 30 RA guarantee a wall attenuation of 35 dB
• Made in white polystyrene or on request in the following colours : 

Bronze,            Light oak,         Dark oak,         grey,            ivoiry,           sipo,              black

• Suitable on vertical walls and on any leaning plans
• Fixed on 354 x 12 mm holes 
• Match the requirements of the norm NF E 51-732
• Test-reports CETIAT 99 800 73/74 et 20 800 01