Breathe in, breathe out, this Kärcher AF 20 air purifier is your ticket to a dust-free dwelling. Since it’s designed for rooms up to 20 square metres, it’s the perfect choice to clear things up in your small home office. And with an air flow rate of 220 cubic metres per hour, it’ll have no trouble taking care of allergens. Plus, it’s got 3 speed settings to choose from, meaning you can crank it up when you really need it. Not just that, it lets you know how much time’s left until the air is clean, blowing away any guesswork. Then, if you fancy a natter, the low noise level means you can comfortably stick to inside voices.