OxyKit 4.5L Aluminium Portable Medical Oxygen Cylinder Kit (675 Litres)

Unlike an oxygen concentrator, which needs continuous electricity to generate oxygen from room air, this cylinder stores compressed medical oxygen directly — so it works during a power cut, in a moving vehicle, or on a trip, with no setup time. It’s meant as backup and emergency support, not as a substitute for prescribed long-term oxygen therapy.

• ✓The longest backup runtime available in the OxyKit portable cylinder range
• ✓A backup supply during power cuts, when a concentrator can’t run
• ✓Longer trips, pilgrimage, or extended high-altitude travel
• ✓A cylinder still light enough (approx. 7.40kg full kit) for one person to manage
• ✓A refillable kit that can be topped up anywhere in India, not a single-use can

• ✓Patients with a respiratory condition, under a doctor’s guidance and prescription
• ✓Senior citizens who may need longer oxygen support during a single episode
• ✓Families who want maximum backup coverage during extended power outages
• ✓Travellers on longer trips who don’t want to carry multiple smaller cylinders
• ✓Clinics that want the highest-capacity portable backup option available

How long will a full 675-litre cylinder last?

At a 2 LPM flow rate, this cylinder runs for approximately 5 hours 37 minutes — the longest runtime of any portable OxyKit size. Duration drops at higher prescribed flow rates. This kit is meant for backup and emergency use rather than continuous all-day support — for that, a concentrator is usually the better fit.

Where can I get the cylinder refilled once it’s empty?

The cylinder is refillable at any authorised gas dealer or industrial/medical gas supplier across India — you’re not limited to the seller you bought it from. Refilling cost is typically borne by the buyer and isn’t included in the original kit price.

What exactly does the warranty cover?

The aluminium cylinder carries a 5-year warranty against manufacturing defects. As with any pressure vessel regulated under PESO, periodic requalification of the cylinder may still be required over its lifetime — check with your dealer for the requalification schedule applicable to this product.

Is this too heavy to carry compared to the smaller sizes?

At around 7.40 kg for the full kit, it’s noticeably heavier than the 1.8L or 2.2L sizes, but still designed for one-person carrying using the included bag. It suits people who specifically want the longest possible backup runtime without moving to a full-size home cylinder.

Can I replace just the mask, cannula, or humidifier bottle later?

Yes — these are wear-and-replace accessories. BYM stocks compatible cannulas and masks and humidifier bottles separately, so you don’t need to buy a whole new kit when an accessory wears out.