| Door-Hanger Sign | Printed card with a cutout or hook that hangs on the exterior door handle | Guest rooms in hotels, inns, and guesthouses | Easy to notice from the corridor, simple to distribute, and inexpensive to replace | Can be removed, misplaced, or obscured; use clear, large lettering and durable stock |
| Reversible Door Hanger | Two-sided hanger with “Do Not Disturb” on one side and a service request on the other | Hotels where guests can choose between privacy and room cleaning | Combines two common guest requests in one sign and reduces the need for separate notices | Keep both messages distinct and readable; staff need a consistent process for interpreting each side |
| Magnetic Door Sign | Flat magnetic panel placed on a compatible metal door | Properties with metal room doors, including some hotels and serviced apartments | Reusable, easy to reposition, and less likely to fall than a loose paper notice | Will not attach to non-magnetic surfaces; confirm door material and use a visible placement position |
| Static-Cling Window Sign | Flexible cling graphic applied to glass without adhesive | Rooms with a glass panel or window beside the entrance | Can be applied and removed without leaving adhesive residue on suitable glass surfaces | Visibility depends on the glass layout and lighting; it is not suitable for many solid doors |
| Electronic Privacy Indicator | Illuminated indicator outside the room, usually paired with an in-room switch or control | Newer hotels and properties with integrated room-control systems | Provides a clear corridor-side signal and can connect with housekeeping workflows | Requires installation and maintenance; staff procedures should account for system faults or power loss |
| In-Room DND Control | Wall switch, bedside control, or room tablet that activates a privacy status | Guest rooms with centralized lighting or room-management controls | Guests can request privacy without placing a notice on the door handle | Often works best with a visible exterior indicator; provide simple instructions for guests |
| Printed Notice or Placard | Card or placard placed in a door slot, holder, or designated exterior display area | Properties with built-in door holders or established sign holders | Can match existing room information materials and is straightforward to update | Use only in a designated holder so the notice remains secure, visible, and clear of door hardware |