Glove box, vacuum box, isolation chamber — these terms get used loosely, but they describe different tools with different jobs. Picking the right one starts with understanding how each controls its internal environment. Here's a clear breakdown.
Glove box (inert atmosphere)
A glove box is a sealed enclosure with built-in gloves that let you handle materials inside without exposing them to room air. Most glove boxes maintain an inert atmosphere by purging with nitrogen or argon, creating a low-oxygen, low-moisture workspace. Use one when you need to manipulate air- or moisture-sensitive materials by hand under a protected atmosphere.
Vacuum box (low pressure)
A vacuum box is built to hold a low-pressure environment. It connects to a vacuum pump through dedicated ports and is engineered to withstand the pressure differential safely. Use one when your process specifically requires vacuum — degassing, vacuum drying, or experiments that must run at reduced pressure. A vacuum box is about pressure, not about hand manipulation.
Isolation chamber (containment / controlled environment)
“Isolation chamber” is a broader term for any sealed enclosure that isolates its contents from the surroundings — to protect the sample from the environment, or the environment from the sample. A glove box is one kind of isolation chamber. The defining idea is barrier isolation and a controlled internal environment.
How to tell which you need
- Need to handle materials by hand under inert gas? → Glove box.
- Need a low-pressure (vacuum) environment? → Vacuum box.
- Need both — inert atmosphere plus the ability to transfer under vacuum? → Glove box with a vacuum transition chamber.
- Need general containment/isolation? → An isolation chamber configured for your application.
They aren't mutually exclusive
Many real setups combine functions: a glove box with an inert atmosphere and a vacuum-capable antechamber for transfers, or a chamber configured for both purging and vacuum operation. The right answer is defined by your process, not by the label on the box.
Frequently asked questions
Can a glove box also do vacuum?
Only if it's built for it. A standard purge-only glove box must not be connected to a vacuum pump; choose a vacuum box or a glove box with a vacuum transition chamber.
Is a vacuum box a glove box?
Not necessarily — a vacuum box is about holding low pressure and may not have gloves. Some chambers combine both.
Not sure which fits? Read our glove box buyer's guide, compare our inert gas glove boxes and vacuum boxes, or request a custom quote.