I've been testing smart home devices for years, and I still get excited when a new drop or deal comes around. As I shop for some new additions for my home, I've encountered countless of fantastic Memorial Day deals available now, so I decided to round up the best ones. Don't hesitate too long, though, these deals are only live during this weekend.Also: Best Memorial Day DealsGetting a great deal shouldn't have to be hard, and, thankfully, many sellers have significantly dropped the prices of their products this weekend. The smart home deals I've gathered below are some of the best legitimate deals that are actually worth your time (and money), so read on to snag the biggest savings.Best Memorial Day deals on smart home devices Current price: $120Original price: $140This is one of the best air purifiers I've ever tested, and the 4.7 reviews (from 10,882 reviewers!) agree. The Levoit 100S is a smart air purifier that you can easily control with the VeSync app on your phone, where you can turn it on or off and set different modes without getting up to the device. It also runs automatically, capable of cleaning large areas of up to 1,073 square feet in an hour when dust or airborne particles are detected.