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Nitrous oxide (N2O)

Nitrous oxide is used in general anesthesia, procedural sedation, dental anesthesia, and other applications.

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We are the leading provider of medical nitrous oxide USP gas for dental, anaesthetic, and other applications.

Medical applications

Medical nitrous oxide is a colorless, odourless, sweet-tasting anesthetic that is used as sedative and analgesic. Commonly referred to as laughing gas, nitrous oxide is used in surgery and dentistry for its pain blocking and reducing effects. 

Medical nitrous oxide is used in adults and children for:

  • General anaesthesia – usually as an adjuvant to other volatile or intravenous anaesthetics
  • Pain relief – employed with oxygen for analgesia in moderately painful procedures, such as dentistry, obstetrics, and fractures
  • Conscious sedation – effective and safe sedation technique for the reduction of stress in the apprehensive or anxious individual

Nitrous oxide is sometimes used as an adjuvant of balanced anesthesia for surgical interventions, enabling reduced doses of other drugs and facilitating their post-operatory elimination.

Improve patient care in your dental and medical practice

No matter how big or small your practice is, our goal is to help you focus more on patient care. We take care of your medical gases needs while keeping your team on schedule to ensure continuity of supply.

We offer a one-stop shop for medical gases (including nitrous oxide) for dentists, physicians, private and family practices, dermatologists and other specialty medical care practitioners. If your practice is growing, you may want to consider a LifeLine gas manifold to reduce the potential for leaks and avoid wasteful gas losses.

Find out how we can help you with your medical gas supply needs and more.

Product information


Product form: Substance
Substance name: Nitrous oxide (compressed)
Formula: N2O
Synonyms: Nitrogen oxide / Nitrous oxide / Nitrogen oxide (N2O) / Laughing gas / Hyponitrous acid / anhydride; Dinitrogen monoxide


Name Product identifier % Classification (GHS-CA)
Nitrous oxide (compressed) (CAS-No.) 10024-97-2 > 99.99 Ox. Gas 1, H270 Press. Gas (Comp.), H280 STOT SE 3, H336

Ordering information

Cylinder size guide

We offer NITROUS OXIDE (DIN: 00572845) in a variety of cylinder sizes to meet the needs of your facility and your healthcare objectives.

Ordering number Cylinder size  Content Pressure at 21°C  (P.S.I.) CGA connection Height Diameter Weight
N2O3 3 (D) 1.9 kg 745 910 50.8 cm 10.2 cm 3.6 kg
N2O5 5 (E) 3.2 kg 745 910 73.7 cm 10.2 cm 6.4 kg
N2O22 22 (M) 14.7 kg 745 326 124.5 cm 17.8 cm 29.5 kg
N2O44 44 (K) 29.3 kg 745 326 142.2 cm 22.9 cm 56.7 kg

Safety information

Nitrous oxide requires special care due to its oxidizing nature. Know the hazards and promote education for your patients and medical staff, to avoid safety hazards and create a safe work and living environment.

Safety data sheet (SDS)

Safe cylinder handling

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Air Liquide Healthcare
6990 Creditview Road, Unit 6
Mississauga, ON L5N 8R9

Why choose us

  • Full-scope medical gases provider
    We are involved from production to patient therapy, and know medical gases intimately

  • Reliability
    You can depend on us to provide you with the right equipment and services to meet your facility's needs

  • Innovation
    Innovation is our vision: we prioritize quality of care through patient-centric products and services

  • Safety
    Ensuring the safety of your patients and staff is our top priority - our emphasis is on safety, compliance and risk management

  • Experienced
    We are owned by Air Liquide Group, the largest supplier of industrial, medical & specialty gases, found on every continent in the world

  • Coast-to-coast service network
    Our fill plants are widespread to shorten response-time and ensure supply chain reliability

  • Accreditation and regulation
    We help you ensure your facility's medical equipment is serviced and fully compliant with Canadian standards

  • Customized portfolio
    We supply a complete range of high-quality specialty gases, including mixtures used in specific applications to suit your needs