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, most are tied with our mention from last week and are at the lowest total price we could find. Sales tax is added where applicable. 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 $81 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 MC504LL/A Intel Core 2 Duo 1.9GHz 13.3" 256GB SSD for $1,059
• browse for more discounted refurbished MacBook Air laptops at the Apple Store