Vaccines are among the most life saving products in modern medicine. But they are also among the most fragile. Each vial must stay within a strict range, usually 2°C to 8°C, from the moment it leaves the manufacturer to the moment it reaches the patient.
Even a few degrees outside this range can make a vaccine lose its potency. A degraded vaccine does not just stop working. It can turn harmful. This is why vaccine cold chains cannot rely on pre-frozen ice packs alone.
Passive cooling only slows temperature change. It does not control it. Vaccines need active cold storage boxes that hold a precise, regulated temperature through every stage of storage and transport.
Lisaline Asia supplies the Hemokool Active Cooling Boxes built for exactly this purpose.
From the moment a vaccine vial is manufactured to the moment it is administered, these boxes keep it in a controlled environment, every step of the way.
What is an active cold storage?
Active cold storage boxes are portable freezers and refrigerators built for the supply chain. They carry temperature sensitive items like vaccines, pharmaceuticals, and blood products.
These electric cooling boxes work for short term storage. Electric controls regulate the temperature inside. This keeps temperature sensitive products within their safe range. No exposure to outside heat. No deviation.
Lisaline Asia manufactures and supplies the Hemokool Active Cooling Boxes. These active cold storage boxes run on both AC and DC power. A battery backup option is also available. They come in various sizes to handle shipments of different volumes.
What are the features and benefits of an active cold storage?
An active cold storage unit has the following features:
1. Precise Electric Controls
Electric controls let you set an exact temperature inside the active cold storage box and hold it there, instead of relying on how cold or warm the surroundings are. For vaccines, this precision protects potency, since a swing above or below the required range, even for a short time, can damage the dose and make it unsafe to administer.
2. R134a Refrigerant
The active cold storage box uses a built-in R134a refrigerant that actively cools the interior, unlike passive boxes that only slow down heat transfer with ice packs. This means the refrigerant keeps working through the whole journey, so vaccines stay within their safe range even on long routes or in hot weather, instead of depending on how well the ice packs held up.
3. Runs on Both AC and DC Power
Since the active cold storage box works on both AC mains and DC power, it can stay connected to electricity at almost every stage of a vaccine’s journey, from a hospital cold room running on AC to a delivery vehicle running on DC. This continuous power supply means the cooling never has to pause while the box moves between sources.
4. Battery Backup for Power Outages
When AC or DC power isn’t available, even briefly, the active cold storage box switches to its battery backup and keeps cooling for 3 to 6 hours. For vaccines, this backup covers exactly the moments where the cold chain usually breaks, during loading, a vehicle changeover, or a sudden power cut, so a short gap in power doesn’t translate into spoiled stock.
5. Dual Chamber Setting
With a removable partition, the active cold storage box can run as two separate chambers, each holding its own temperature. This lets you carry vaccines that need one range alongside another product that needs a different one, in the same box and the same trip, instead of running two shipments or compromising on one product’s storage to accommodate the other.
6. Portable Design with Foldable Handle and Polyurethane Wheels
The foldable handle and polyurethane wheels mean the box can be moved by one person, from a storage room straight onto a vehicle, without any lifting equipment. For vaccine shipments, this matters at every handoff, since less handling and less time in transition means less exposure to conditions outside the safe range.
7. Available in Multiple Sizes
The active cold storage box comes in 36, 50, and 60 litre capacities, so you can match the size to the number of doses you’re moving. A smaller batch headed to a single clinic doesn’t need the same box as a bulk shipment to a district vaccination drive, and picking the right size keeps the cooling load efficient for what’s actually inside.
8. Retro Fitted Alarm Kit
An alarm kit can be retro fitted to the active cold storage box, with a downloadable memory option that logs the temperature throughout the trip. For vaccines, this record is what proves the shipment stayed within range, and it gives you the data to catch and act on any excursion instead of finding out only after the dose has already been administered.
9. LCD Display Showing Temperature
The digital LCD display shows the current temperature without needing to open the active cold storage box. Every time the lid opens, warm air gets in and the vaccines inside are briefly exposed to conditions outside their safe range, so checking the status on the display keeps that exposure at zero.
10. Interior LED Lighting
A built-in LED lights up the inside of the active cold storage box, so staff can see exactly how the vaccines are placed without opening the lid. This means anyone loading, checking, or retrieving stock can do it by sight through the smallest possible gap, keeping the box’s internal temperature stable while stock is being handled.
What are the storage requirements of vaccines?
Vaccines are biological products, and heat or cold outside their approved range can break down the proteins that make them work. Most vaccines need to stay between 2°C and 8°C from the moment they leave the manufacturer to the moment they’re administered, which is often called the positive cold chain.
Some vaccines, like OPV, need to stay frozen, typically between -15°C and -25°C, and freezing a vaccine that isn’t meant to be frozen can damage it just as badly as overheating it.
Beyond the temperature range itself, a proper storage setup needs continuous monitoring, since a vaccine can slip out of range during a short power cut or a long transit leg without anyone noticing unless the temperature is actually being tracked.
It also needs a way to prove the cold chain stays intact, because health authorities and hospitals require documentation showing that a batch of vaccines never left its safe range before it reaches a patient. And it needs to protect the vaccines without slowing down the people handling them, since staff checking or loading stock shouldn’t have to open the box repeatedly and expose the vaccines to room temperature each time.
How do Active Cold Storage Boxes meet these requirements?
The temperature range of these boxes runs from -20°C to +20°C, which covers both the standard 2°C to 8°C range most vaccines need and the colder range required by freeze-dependent vaccines. Precise electric controls hold whichever temperature is set, so the box isn’t just cold, it’s cold at the exact point a specific vaccine requires. The R134a refrigerant does this actively, continuously adjusting to hold the set range, rather than slowly losing its cooling capacity the way ice packs do over a long journey.
Since the active cold storage box box runs on AC power, DC power, and a battery backup good for 3 to 6 hours, it stays connected to a power source through nearly every stage of a vaccine shipment, and the battery covers exactly the moments where power typically drops out, like a vehicle changeover or a sudden outage. This continuous power is what keeps the temperature from drifting during the gaps that would otherwise put a shipment at risk.
For monitoring and documentation, the LCD display shows the current temperature at a glance, and the retro fitted alarm kit logs the temperature throughout the trip with a downloadable memory option. This gives you a record showing the vaccines stayed within range the entire time, which is what compliance checks and hospital receiving teams actually ask for.
The dual chamber setting also matters here, since it lets you store vaccines that need the 2°C to 8°C range alongside frozen vaccines needing a colder setting, in the same box, without either one being stored outside its required range to accommodate the other. And the interior LED light plus the foldable handle and wheels mean staff can check on and move the vaccines quickly, without repeatedly opening the box or needing extra equipment to load and unload it.
Why Choose Active Cold Storage Boxes from Lisaline Asia?
Lisaline Asia Manufactures These Boxes, Not Just Sells Them
Hemokool Active Cold Storage Boxes are manufactured by Lisaline Asia, so every unit comes directly from the source, not through multiple layers of distribution. Documentation, calibration records, and warranty support all trace back to the same company that built the box, so there’s no gap in accountability if something needs servicing or replacing.
Built and Tested to WHO PQS Standards
These active cold storage boxes fall under WHO PQS category E0003, the classification for active cold chain appliances. That covers the performance of the box itself. On top of that, Lisaline Asia’s in-house lab is ISO 17025 certified and NABL accredited, handling calibration, IQ/OQ validation, and thermal mapping for the equipment it manufactures. This means the compliance work isn’t outsourced or assumed, it’s done in-house by the same company responsible for the box, and the records are ready whenever a hospital, blood bank, or pharma company needs to show an auditor that the equipment performs as claimed.
Decades in Cold Chain, Not Just in Cooling Boxes
Lisaline Asia has worked in cold chain monitoring since 1998, and introduced India’s first miniaturised Vaccine Vial Monitor, used through the Polio Eradication programme to track vaccine exposure in the field. That experience carries into how these active cooling boxes are engineered and supported today, for hospitals, blood banks, pharmaceutical companies, and logistics providers across the country.
A Full Cold Chain Solution, Not Just a Box
Beyond the cooling box, Lisaline Asia supplies real time and offline USB data loggers that travel with a shipment to independently record the temperature, and vaccine vial monitors that apply directly onto individual vials to confirm whether that specific dose stayed safe. This means storage, transport, and verification don’t have to be stitched together from different vendors, it all comes from one source.
Support That Continues After the Sale
Every active cooling box is backed by after sales service, spare parts coordination, annual maintenance contracts, and 24/7 support across India, South Asia, and the Middle East. Since Lisaline Asia manufactures the boxes, servicing and parts don’t depend on a separate distributor somewhere else in the chain, they come from the company that built the equipment.
Conclusion
Vaccines don’t leave much room for error. A few degrees outside the 2°C to 8°C range, or the wrong temperature for a freeze-dependent dose like OPV, can turn a life saving product into a wasted one. Passive cooling was never built to handle that level of precision, which is why active cold storage has become the standard for anyone moving vaccines from a manufacturer to a patient.
Hemokool Active Cold Storage Boxes are built around that exact need. Precise electric controls, an R134a refrigerant that keeps working through the whole journey, dual power sources with battery backup, and a dual chamber design all work together to keep vaccines within range at every stage, whether that’s a hospital cold room, a delivery vehicle, or a last mile handoff.
Since Lisaline Asia manufactures these active cold storage boxes rather than just distributing them, every unit comes with documentation, calibration, and support that trace back to one source. Combined with decades of cold chain experience and a full range of monitoring equipment to go alongside the active cold storage boxes, it’s a setup built to protect vaccines at every point in the chain, not just inside the box itself.
If you’re setting up or upgrading your vaccine cold chain, get in touch with Lisaline Asia to find the right active cold storage box for your requirement.
