01 / Safety guide
CO₂ safety information
Handling precautions, potential hazards, and emergency-response information for carbon dioxide.
Natura / Safety & support
Product safety.
Made clear.
CO₂ safety information, shipping documents, and direct support. Find the resources you need to handle your Natura cylinders with care.
01 / The resource library
Safety resources.
All in one place.
Start with the safety guide and Safety Data Sheet. For a cylinder return, confirm the applicable shipping documents with Natura. All PDF links open in a new tab.
02 / Technical reference
CO₂ safety data sheet
Detailed hazard, handling, storage, and first-aid information in the supplier’s Safety Data Sheet (SDS).
03 / DOT reference
DOT special permit
DOT-SP 20936 for CO₂ Exchange LLC. Review the conditions and limitations in the official PHMSA document.
Reference copy
USPS authorization
The previously posted authorization letter for CO₂ Exchange LLC. Contact Natura for current return-shipping authorization.
Before you ship: Confirm the applicable authorization and packaging instructions with Natura. The USPS letter above is a historical reference, not confirmation of current mailing authorization.
02 / Packing & shipping
Before the box
goes back.
Read the safety guide and SDS before handling your cylinders. For a return, use the instructions for your specific package and confirm the next steps with Natura.
DOT safety documents describe specific conditions and limitations. Contact the team if you are unsure which documents apply to your return.
Visit PHMSA permit search (opens in a new tab)
Video coming soon
2-pack box
folding instructions
Need packing help now? Contact Natura for the instructions for your return box before preparing your shipment.
Ask about packingThis page does not replace package-specific closure instructions. The instructional video is not yet available here.
03 / Here to help
Questions?
Let’s make it clear.
For non-emergency product safety or return-packing questions, connect with the Natura team.
For CO₂ emergencies, call 1-800-424-9300. For immediate danger, contact local emergency services. Do not use email for emergencies.
