With the Dyson Purifier Humidify+Cool PH2 De-NOx, you can improve the humidity in your home and prevent problems caused by dry air. This air purifier kills bacteria in the water with UV light, so you don’t spread bacteria. The K carbon filter removes formaldehyde gases from the air and also absorbs nitrogen dioxide. This makes the air cleaner, which is great when you’re cooking or if you have a lot of furniture. The air purifier filters 99.95 percent of the smallest particles from the air and is sealed according to the HEPA 13 standard. You can connect the device to a smartphone app, so you always have insight into the air quality and can control the air purifier remotely.