The blissful breather Air Things House Kit

This triple shot of pollution-taming intelligence includes two separate sensors and a hub to monitor everything from temperature and humidity to VOCS (volatile organic compounds) and even the risk of mould. You can dissect the data any time and from anywhere, while comprehensively connected smarts mean it’ll integrate with Alexa, Google Assistant and IFTTT, so you can get the place cleaned up before you even arrive home.

£269 / airthings.com