Home » R-454B Refrigerant – Cylinder
Réfrigérant R-454B – cylindre
À quoi ça sert – Réfrigérant R-454B – cylindre
Fiche technique – Réfrigérant R-454B – cylindre
À savoir avant l’installation – Réfrigérant R-454B – cylindre
Vue de détail – Réfrigérant R-454B – cylindre
Réfrigérant R-454B – cylindre
À quoi ça sert – Réfrigérant R-454B – cylindre
Fiche technique – Réfrigérant R-454B – cylindre
À savoir avant l’installation – Réfrigérant R-454B – cylindre
Vue de détail – Réfrigérant R-454B – cylindre
AirGreen

R-454B Refrigerant – Cylinder

In stock

R-454B, an R-32-based blend designed for a new generation of equipment, sold to technicians holding the attestation required in Québec.

AirGreen codeAG-RF-002

A2LASHRAE 34 safety class
465100-year GWP
68.9 / 31.1R-32 / R-1234yf, mass %
R-454BHFC/HFO blendCertification required
Ask for a quote

514 316-2973 · sales@airgreen.ca

Quick facts

AirGreen codeAG-RF-002
CompositionR-32 / R-1234yf (68.9 / 31.1%)
Safety classA2L
GWP (100 yr)465
SaleTo certificate holders, or charged by AirGreen

R-454B refrigerant is a blend of R-32 and R-1234yf, at 68.9% and 31.1% by mass according to the ASHRAE designation. It is used in a new generation of central heat pumps and air conditioners designed for this refrigerant. We sell it by the cylinder to refrigeration technicians and qualified companies, and our technicians charge it for other clients.

A much lower GWP, an A2L class

According to the U.S. EPA reference table, the global warming potential (GWP) of R-454B is 465 over 100 years, compared with 2,088 for R-410A. The EPA places it in class A2L of the ASHRAE 34 standard: low toxicity and low flammability. It requires tools, recovery equipment and methods designed for A2L refrigerants.

Good charging practice

  • Check the nameplate: R-454B goes only into equipment designed for it, never as a replacement for R-410A.
  • As with any blend, charging is usually done in the liquid phase, to keep the blend’s proportions: follow the manufacturer’s instructions.
  • Weigh the charge on a scale, after a leak check and evacuation.

Sale limited to certificate holders

In Québec, the Règlement sur les halocarbures (Q-2, r. 29) governs this refrigerant. Its section 51 requires anyone who sells halocarbons to make sure the buyer holds an environmental qualification certificate for workers, or employs a person who holds this certificate. Its section 43 also reserves the charging, maintenance and repair of air conditioning and refrigeration equipment to qualified persons. We therefore check the certificate before every sale. Without a certificate, leave the charging to our refrigeration technicians.

The safety data sheet is supplied with the cylinder by its manufacturer.

Available from AirGreen, with or without installation

AirGreen sells R-454B to refrigeration technicians and qualified companies, and our technicians charge it on site in Montréal, Laval, Longueuil, on the South Shore and on the North Shore. RBQ licence 5645-9605-01. For availability, cylinder size or a quote, call us at 514 316-2973 or email sales@airgreen.ca with your certificate number and the quantity you need.
01 · What it is for

For equipment designed for R-454B

R-454B goes into heat pumps and air conditioners designed for it; it does not replace another refrigerant in existing equipment.

  • Recharging a central heat pump or air conditioner designed for R-454B
  • Adding charge for a line longer than the pre-charged length, per the manual
  • Returning a unit to service after a leak repair
  • Commissioning new equipment, per the maker’s instructions
R-32-based blend68.9% R-32 and 31.1% R-1234yf by mass, per the ASHRAE designation.
GWP of 465About a quarter of R-410A’s, per the U.S. EPA reference table.
A2L classLower toxicity and lower flammability under ASHRAE 34.
02 · Specifications

Specifications

From the manufacturer’s documentation. A value the manufacturer does not publish is not listed.

DesignationR-454B
CompositionR-32 / R-1234yf, 68.9 / 31.1% by mass
Safety class (ASHRAE 34)A2L
100-year GWP465
Ozone depletion potential0
SaleHolders of an environmental qualification attestation or businesses employing one
AirGreen codeAG-RF-002
03 · Before installing

What to know before installing

  • Check the nameplate to confirm the unit is designed for R-454B.
  • As with any blend, charging is usually done in liquid phase: follow the maker’s instructions.
  • Use tools and recovery equipment rated for A2L refrigerants.
  • The safety data sheet is supplied with the cylinder by its maker.
04 · Goes with

You may also need

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05 · Questions

Frequently asked questions

Does R-454B replace R-410A in my current unit?

No. R-454B is used in equipment designed for it. An R-410A unit is recharged with R-410A, the refrigerant listed on its nameplate.

Can I buy R-454B without a certificate?

No. In Québec, section 51 of the Halocarbon Regulation requires the seller to check that the buyer holds an environmental qualification attestation, or employs someone who does. Without one, our technicians do the charge for you.

Why charge in liquid phase?

Because R-454B is a blend: charging as a liquid keeps the proportions of its components unchanged. Follow the equipment maker’s instructions.

Can you do the charge?

Yes. Our certified technicians do the leak check, the vacuum and a weighed-in charge, everywhere in Greater Montréal.

AirGreen · Montréal, Laval, Longueuil, South Shore, North Shore

R-454B for technicians, and charging by our team

Tell us the size and the quantity: we confirm availability and send you a quote. Or let our technicians install it for you.

Ask for a quote514 316-2973
RBQ 5645-9605-01Ventilation, refrigeration and electrical
Free estimateon site, for any installation
Quote in 24 hby phone or email
Bouchervilleshowroom

Specifications from the manufacturer’s documentation, checked on October 7, 2026.