How to Choose a Compact Glove Box: 2026 Buying Guide

A glove box gives you a sealed, controlled-atmosphere workspace — for handling air- and moisture-sensitive materials under inert gas, or containing toxic substances. Choosing the right one comes down to three decisions: size and glove count, containment vs isolation, and atmosphere control. This guide maps each to the Yamato Scientific SG series, made in the USA.

1. What size and how many gloves?

• SG-828 (28", 2 gloves) — a compact single-operator box.
• SG-835 (35", 2 gloves) — more depth and height for larger work.
• SG-848 (48", 3 gloves) — wider workspace, three glove ports.
• SG-860 (60", 4 gloves) — the largest, for multi-operator work.

Every model includes a 12" transfer chamber and a flat side access door so you can move samples and equipment in and out without breaking the main-chamber atmosphere.

2. Containment or isolation?

Run a slight negative pressure (−0.5" water column) for containment — keeping hazardous material in — or a slight positive pressure (+0.5" water column) for isolation — keeping contaminants out of a clean atmosphere. The main chamber handles up to ±6" water column (11.2 torr); the transfer chamber pulls to −26" Hg.

3. Atmosphere control

Four key-cock purging valves (two main, two transfer) let you purge with nitrogen, argon, or another inert gas to lower oxygen and humidity — essential for air-sensitive work. A pressure-relief valve with a small HEPA filter protects the box, and the unit ships complete with white ambidextrous Hypalon gloves and a hospital-grade outlet strip. Just add your gas.

Frequently Asked Questions

What is a glove box used for?

A sealed, controlled atmosphere for handling air- and moisture-sensitive materials under inert gas, or for containing toxic substances such as asbestos, fibers, and harmful vapors — protecting both sample and operator.

What is the transfer chamber for?

The integrated 12" transfer chamber (with its own purging valves and vacuum gauge) lets you move samples and equipment in and out without breaking the main chamber's atmosphere.

What gas do I need?

Nitrogen, argon, or other inert gases. The four valves lower oxygen and humidity; you supply the gas — the box is otherwise a complete system.

What is the difference between containment and isolation?

Containment runs slight negative pressure to keep hazardous material in; isolation runs slight positive pressure to keep contaminants out. The SG series supports both at ±0.5" water column.

Source: Yamato Scientific SG-series documentation. LabSupplies.com is an authorized Yamato dealer — genuine units, full manufacturer warranty, in stock, made in and shipping from the USA.