PrepLabelQuick answer: Amazon's poly bag guidance asks for a suffocation warning on bags with an opening of 5 in (12.7 cm) or more, measured flat, either printed on the bag or as a label. The minimum text size depends on length + width of the bag: under 29 in → 10 pt, 30-39 in → 14 pt, 40-59 in → 18 pt, 60 in or more → 24 pt. Enter your bag size above and the tool checks the label meets it.
Suffocation warning font size by bag size
| Bag length + width | Minimum font size | Example bag |
|---|---|---|
| Under 29 in (about 74 cm) | 10 pt | 9 × 12 in → 21 in |
| 30-39 in (about 76-99 cm) | 14 pt | 14 × 20 in → 34 in |
| 40-59 in (about 102-150 cm) | 18 pt | 18 × 24 in → 42 in |
| 60 in or more (about 152 cm) | 24 pt | 24 × 36 in → 60 in |
This is the table as seller guides and forum posts quote it from Amazon's poly bag requirements. It jumps from “under 29 in” to “30-39 in”, so PrepLabel uses 14 pt for anything from 29 in up, to stay on the safe side. Check the current poly bag page in Seller Central Help before buying label stock.
What the warning says
The standard English text, as shown in Amazon's sample, is:
WARNING: To avoid danger of suffocation, keep this plastic bag away from babies and children. Do not use this bag in cribs, beds, carriages or play pens. This bag is not a toy.
PrepLabel also includes French, German, Spanish, Italian and Dutch versions for European marketplaces. They're careful translations of the same warning, not official texts, so have a native speaker check them if your marketplace or local law requires specific wording. You can replace the text with your own under Edit the warning text.
Choosing a label size
The required font size is a physical size, so the label has to be big enough to hold the whole warning at that size. These are the text sizes PrepLabel reaches with the standard English warning:
| Minimum for your bag | Smallest label stock that reaches it (English) |
|---|---|
| 10 pt | 2-5/8 × 1 in, 30-up Letter (10.4 pt) or 2 × 2 in roll (12.2 pt) |
| 14 pt | 3 × 2 in roll (15.3 pt) or 4 × 2 in (17.9 pt) |
| 18 pt | 4 × 3 in roll (21.5 pt) or A4 8-up, 99.1 × 67.7 mm (20.5 pt) |
| 24 pt | 4 × 6 in roll (31.9 pt) or a full sheet cut to size |
More languages need more room: English and French together reach 10 pt on a 4 × 2 in label (11.4 pt) and 14 pt only on 4 × 6 in (20.1 pt), and all six languages reach 10 pt only on a 4 × 6 in label (11.3 pt). The tool shows the size it achieved and turns red if it's below the minimum for your bag.
- Thermal: 4 × 2, 4 × 3 and 4 × 6 in rolls work on most 4-inch thermal printers.
- Laser sheets: 10-up Letter (4 × 2 in), 14-up or 8-up A4, or full sheets with Outline each label ticked as a cutting guide.
- Placement: put the warning where it's easy to see and don't cover the FNSKU barcode.
Bags that already have a printed warning don't need a sticker. Warning labels never carry PrepLabel's name; the small credit appears only in the outer margin of full sheets.
FAQ
What font size does a suffocation warning need?
It depends on the bag's length plus width: under 29 in, 10 pt; 30 to 39 in, 14 pt; 40 to 59 in, 18 pt; 60 in or more, 24 pt. PrepLabel rounds the 29 to 30 in gap up to 14 pt.
Which poly bags need a suffocation warning?
Amazon's poly bag guidance applies the warning to bags with an opening of 5 inches (12.7 cm) or more, measured when flat. The warning can be printed on the bag or attached as a label.
Can I print suffocation warnings in other languages?
Yes. Tick French, German, Spanish, Italian or Dutch to add those versions on the same label. Have a native speaker review translations used for compliance.
Are these labels free to use commercially?
Yes. Print as many as you like for your products. There's no watermark on the labels themselves.
More PrepLabel guides
Last updated · Written by the MiniTools team. General information, not legal advice. Amazon changes its rules, so confirm current requirements in Seller Central.