A pair of everyday products sold through Costco have been pulled from shelves over safety concerns affecting customers across the US. The recall involves two separate products — a portable power bank and a window air conditioning unit — and affects items sold both directly through Costco and via

Costco accepts most returns without time limits, though there are some exceptions. Electronics have a 90-day return window. Cigarettes and alcohol may not be returned where it’s against the law. Airline and live performance event items, ticket items, precious metals, Shop Cards and gift cards are not returnable.

Some of the recently recalled power bank models contain potentially faulty lithium-ion battery cells, manufacturer Anker Innovations said.