If you've been waiting for a sale to make your next big splurge, now's the time to finally take the plunge with the Amazon Prime Day event, which lasts until July 11. Prime members get exclusive access to deals sitewide on everything from laptops to telescopes.

The Dyson Purifier Cool TP07 simultaneously helps cool the temperature, prevents the indoor air from stagnating and removes a wide range of indoor pollutants, including pollen and smoke — and right n...