The Apple Store continues to discount a selection of factory-refurbished MacBook Air laptops, as listed below. Plus, each qualifies for free shipping. At up to $300 off, that's tied last week's mention and the lowest total price we could find for these systems. Each carries a 1-year Apple warranty, the same as new units. Items are removed from The Apple Store when sold out. Note that these systems are eligible for the OS X Mountain Lion Up-to-Date Program. Notables, each at least $90 under the lowest total price we could find for a new unit:

• Refurb MacBook Air MD223LL/A Intel Core i5 1.7GHz 11.6" 64GB SSD (pictured) for $849
• refurb MacBook Air MD224LL/A Intel Core i5 1.7GHz 11.6" 128GB SSD for $909
• refurb MacBook Air MD231LL/A Intel Core i5 1.8GHz 13.3" 128GB SSD for $999
• browse for more discounted refurbished MacBook Air laptops at the Apple Store