---
type: restriction
id: usps-mercury-and-mercury-containing-devices-un2809
asset: shipping-restrictions-by-class
title: "Mercury and mercury-containing devices (UN2809) — Postal shipping restrictions by item category"
sources:
  - https://pe.usps.com/text/pub52/pub52c3_027.htm
source_quote: "Mercury and Mercury-Containing Devices (UN2809): Includes metallic mercury and items such as thermometers, barometers, and sphygmomanometers (i.e., blood pressure meters) that contain metallic mercury."
generated: true
harvested: 2026-08-04
stale_after: 2027-08-04
item_category: "Mercury and mercury-containing devices (UN2809)"
carrier: "USPS"
restriction_type: "prohibited"
scope: "all mail"
conditions: "Nonmailable; includes metallic mercury and thermometers, barometers, sphygmomanometers containing metallic mercury"
verified: true
unverified_fields: carrier, conditions, restriction_type, scope
---
**Item category:** Mercury and mercury-containing devices (UN2809)

**Carrier:** USPS

**Restriction type:** prohibited

**Scope:** all mail

**Conditions:** Nonmailable; includes metallic mercury and thermometers, barometers, sphygmomanometers containing metallic mercury

> Mercury and Mercury-Containing Devices (UN2809): Includes metallic mercury and items such as thermometers, barometers, and sphygmomanometers (i.e., blood pressure meters) that contain metallic mercury.

Source: <https://pe.usps.com/text/pub52/pub52c3_027.htm>