| 摘要 |
<p>A letterbox draught excluder, for attaching to a letterbox aperture on an internal or external door is disclosed. The draught excluder comprises a frame attached to the back of the door by self tapping screws or self-adhesive. The draught excluder has a hinged flap to allow post to pass through it and then closes to form a seal to prevent heat loss. The hinge may comprise a living hinge or a conventional hinge. The flap closes through its own weight. The flap may be held closed by magnets.</p> |
