Allow me to share a not-so-fun fact, straight from the Environmental Protection Agency (EPA): “Americans, on average, spend approximately 90 percent of their time indoors, where the concentrations of some pollutants are often 2 to 5 times higher than typical outdoor concentrations.”  Yikes.

The good news is that you (and your family) don’t have to be stuck inhaling all that nasty air in your home. Microbiologists confirm that HEPA (High-Efficiency Particulate Air) filters are one of the best ways to keep it clean, and Dyson’s latest take on the tech is currently $100 off in honor of Black Friday and Cyber Monday.

Dyson Pure TP01 Cool Tower HEPA Purifier and Fan ($329.99) purifies the air using a HEPA filter to capture teeny-tiny particles—we’re talking just 0.1 microns (which is approximately 700 times smaller in diameter than the average human hair!)—of dust, pollen, pet dander, and other airborne allergens. And it does this with a rate of 99.97 percent, which is super impressive. It also features an activated carbon 360-degree glass filter to help stomp out odors and potentially harmful gasses like hydrogen sulfide.

In addition to this product purifying the air, it also works as a fan, and features bladeless technology that provides a smooth and consistent airflow while simultaneously reducing the risk of injuries that come with traditional blade fans.

The device connects to an app on your phone that allows you to check your home’s air quality in real time, make adjustments, and control the fan from afar. It’s also got an LED screen and comes with a remote that’s easily stored on top of the device (which means you won’t lose it, ever) for a super-simple user experience.

Understandably, there’s no shortage of happy customers, and one glance at the reviews for the Dyson Pure HEPA Purifier will tell you why. Case in point? “Although we’ve only used this for a couple of weeks, this Dyson Pure TP01 Tower has proven to be everything it was advertised to be,” writes one fan of the device. “It’s very quiet and produces an acceptable airflow even at a low setting. So far it is proving to be a good purchase.”

This offer is valid now through December 17th, and this is one deal that you—and the air in your home—won’t want to miss.