Filter

Fire Protection

1. without fire protection (3)

sound insulation

1. simply sound insulation up to 34 dB (1)
2. elevated sound insulation up to 42 dB (1)

Access Panel Design

1. sound insulation (2)
2. removable (3)
3. paint-ready door leaf (1)
4. air- and dust-tight (3)
5. indoor (1)