Reference Source

Balloons filled with non-flammable gases

For Balloons filled with non-flammable gases, carrier is Royal Mail / Parcelforce; restriction type is restricted; scope is UK allowed with marking; not allowed on International Airmail routes; conditions is Not allowed on International Airmail routes; for UK destinations permitted but must be clearly marked NON-FLAMMABLE GAS on the outer packaging, otherwise carried by road or rail, recorded from its source on 2026-08-10.

Item category
Balloons filled with non-flammable gases verified
Carrier
Royal Mail / Parcelforce our reading
Restriction type
restricted our reading
Scope
UK allowed with marking; not allowed on International Airmail routes our reading
Conditions
Not allowed on International Airmail routes; for UK destinations permitted but must be clearly marked NON-FLAMMABLE GAS on the outer packaging, otherwise carried by road or rail. verified
Sourcecorporate.postoffice.co.uk
Verified
Review by
DatasetPostal shipping restrictions by item category

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

Royal Mail - Balloons filled with non-flammable gases are not allowed on International Airmail routes. For UK destinations, balloons filled with non-flammable gases are permitted but these must be clearly marked on the outer packaging with the words NON-FLAMMABLE GAS.

corporate.postoffice.co.uk, retrieved 2026-08-10

Source

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