Amazon Prime Day deals are here for four days this year, but that doesn’t mean all your favorite products will be on sale for that full length of time. Popular products tend to sell out quickly when the discounts are this deep, so if you’ve had your eye on something, you don’t want to miss your chance to grab it on sale.

We're only halfway through Amazon's July Prime Day event. It's a whopping four days long this year, running through Friday, July 11, which means there are more deals than ever to entice shoppers looking for a bargain.

A massive $300 discount brings you this high-end air purifier and cooling fan for just $350 just in time for the brutal summer heat.