Bed, Bath & Beyond has been fined $230,000 for selling more than 27,000 products without proper labelling or instructions.
The company sold 3700 sets of children's pyjamas without fire-hazard labels - and more than 23,000 hot water bottles without safe usage instructions.
The General Manager accepts responsibility, but notes no products were found to have physical faults.
The Commerce Commission's Vanessa Horne says it takes safety issues seriously - especially on products for children.
"There's a label requirement, mainly for parents, so that they know that that particular pair of pyjamas might be more flammable than another."
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