Deals expire for many reasons, usually because the price increased or the product sold out. In some cases, the deal may still be available.
Brad's Deals Editor Tom,
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Today only, this Amazon Basics Portable Air Conditioner is on sale for $269.99 at Woot. Shipping is free with an Amazon Prime account or when you sign up for a free Prime trial. Otherwise, it adds $6. Other retailers are charging $473 or more! It comes with remote control, and is suitable for rooms up to 550 square feet.