Not a retrofit shortcut
Do not charge R152A into an R134A, R1234yf or R12 system. U.S. mobile A/C acceptance applies to approved new systems subject to use conditions, not ordinary retrofits.

SPECIALIZED MOBILE A/C • A2
R152A is a single-component HFC with a lower global-warming potential than many legacy HFCs. Because it carries an A2 flammability classification, it belongs only in equipment specifically engineered, approved and labeled for R152A—not in an improvised conversion.
Clear identification matters. Compare these details with the equipment nameplate, service documentation and cylinder label before connecting service tools.
| Refrigerant designation | R152A |
|---|---|
| Chemical name | 1,1-Difluoroethane |
| Chemical formula | C₂H₄F₂ / CH₃CHF₂ |
| Net refrigerant weight | Refer to the selected package or cylinder label |
| Safety classification | A2 — lower toxicity, flammable |
| Refrigerant family | Single-component HFC |
| Typical equipment | Purpose-engineered equipment and approved new mobile A/C systems subject to required use conditions |
| Intended user | Qualified professionals trained for flammable refrigerants |
Do not charge R152A into an R134A, R1234yf or R12 system. U.S. mobile A/C acceptance applies to approved new systems subject to use conditions, not ordinary retrofits.
Treat the work area, tools and recovery process for an A2 flammable refrigerant.
Charge only by the documented weight and procedure for the exact approved equipment.
R152A is not a drop-in replacement for R134A or another mobile A/C refrigerant. Use only in purpose-designed equipment with the required engineering controls, fittings and labeling. Never mix refrigerants.
Bulk refrigerant sales in the United States are restricted. Proof of the applicable Section 608 or Section 609 technician certification—or documentation that the purchaser employs a properly certified technician—may be required before fulfillment. The purchaser is responsible for satisfying federal, state and local rules for purchase, transport, storage and use.
Store upright in a secure, cool, dry and well-ventilated area away from flames, sparks, hot surfaces and direct sunlight. Follow flammable-gas storage requirements and the current safety data sheet. Refrigerant can displace oxygen, cause cold burns and create dangerous pressure if mishandled. Never intentionally vent refrigerant.