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How to Choose a COSHH Storage Box

How to Choose a COSHH Storage Box

Working out how to choose a COSHH storage box comes down to what you store, how much of it, and where the box will live. Get those right and you have a secure, ventilated store that keeps your hazardous substances safe and helps you comply with your COSHH duties. This guide walks through each decision using the HazSafe® range, which comes in five sizes.

What is a COSHH storage box?

A COSHH storage box is a secure, purpose-built container for keeping hazardous substances safely on site. A HazSafe® box is a sealed, fully welded steel unit that holds any leak or spill inside, internally ventilated so fumes disperse, finished in high-visibility yellow with hazard warning labels, and fitted with a catch lock that takes your own padlock. It helps you comply with COSHH regulations, as demanded by law, for the secure storage of hazardous materials.

What size COSHH box do I need?

Match the size to the number and size of the containers you store, with a little room to keep them stable and separated. The HazSafe® range gives you five sizes, listed here smallest to largest, each a single open internal space.

Size (H x W x D) Best For
380 x 360 x 370mm A few small containers, aerosols or COSHH items on a small site
555 x 460 x 420mm A modest store of chemicals, paints or solvents
555 x 660 x 420mm A general on-site hazardous stock for a small team
555 x 890 x 420mm Larger quantities and a wider mix of containers
555 x 1190 x 420mm The largest unit, for bulkier drums, cans and more stock

If you are between sizes, size up. A little extra room lets you keep containers upright and separated, which is safer than packing them in tight.

What to look for in a hazardous storage box

Choose your HazSafe® COSHH storage box at WI Products, dispatched on a 48-hour delivery, or contact the team for help matching a size to your substances.

Frequently asked questions

What is the smallest COSHH storage box?

In the HazSafe® range the smallest is 380 x 360 x 370mm, which suits a few small containers or aerosols on a small site.

Are COSHH storage boxes ventilated?

HazSafe® boxes are, with internal ventilation to stop fumes building up. Not all steel boxes are, so ventilation is worth checking before you buy for volatile substances.

Can I store flammable liquids in a COSHH box?

HazSafe® boxes are used for a range of hazardous materials including flammables. The sealed welded body holds a leak or spill inside the box, and the ventilation lets fumes disperse. For flammables, also follow DSEAR guidance on quantities kept and separation from ignition sources.

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