DNC-B is double layered door sound insulation, with NRC 1.0 (100% sound absorption) and will reduce large amount of noise coming through the door, but remember will not mute sound completely, because NRC standard do not measure whole hearing range.
Window acoustic blanket WNC-B, Black 100 x 180cm, double-layered window sound insulation
Door acoustic blanket DNC-W, White 100 x 235cm, double-layered door sound insulation
Door acoustic blanket DNC-W, White 100 x 235cm, double-layered door sound insulation
Sliding door fitting, HAWA Junior 100 B, Acoustics Set - in the Häfele America Shop
Large Sound Dampening Blanket Soundproof Blanket for Door Acoustic Noise Blocking Blanket Studio Sound Absorption Sheet (48 x 48 Inch) : Everything Else
RYB HOME Large Soundproof Blanket, Thermal Insulated Door Curtains for Doorway Noise Reducing Divider for Workshop Basement Laundry Acoustic Covering as Moving Blanket, W48 x L96 inch, Grey, 1 Panel
Door acoustic blanket DNC-W, White 100 x 235cm, double-layered door sound insulation
Wrap It Up in a Snap: Wrap it all up in our massive 96 x 80 sound dampening blanket! From furniture to artwork, this polyester wonder has you
VEVOR YB066 Dampening 96 x 80, Extra Large Soundproof Grommets, Light Blocker for Door Acoustic Noise Blocking Blanket Studio Sound Absorption
Soundproof Pocket Door, Acoustic Sliding Door
Large Sound Dampening Blanket Soundproof Blanket for Door Acoustic Noise Blocking Blanket Studio Sound Absorption Sheet (48 x 48 Inch) : Everything Else
Door acoustic blanket DNC-B, Black 100 x 235cm, double-layered door sound insulation
RYB HOME Large Soundproof Blanket, Thermal Insulated Door Curtains for Doorway Noise Reducing Divider for Workshop Basement Laundry Acoustic Covering as Moving Blanket, W48 x L96 inch, Grey, 1 Panel
Sound insulation