Acoustic Plenum Box

AirScape fans are extremely quiet for their power. However, if you have the attic space, there is a nice trick to reduce sound levels even further. The Acoustic Plenum Box adds 12 inches to the total height of the your AirScape installation and can reduce operating sound levels up to 3 dBA.

Insulated 12" raised-frame 24 gauge thick galvanized sheet metal construction with 1.5" of acoustical insulation. Ships flat and is easily assembled. The kit includes insulated raised frame and installation hardware.

ACP-01 Assembly Instructions
ACP-02 Assembly Instructions

Order ACP-01 for use with whole house fans with base of 14.5" x 22.5", including AirScape 1.7 (pre 2020), 1700, 2500 and 3200 models.

Order ACP-02 for use with whole house fans with base of 22.5" x 26.5", including AirScape 3400, 4300, and 5300 models.