At $300, the Airsign HEPA Vacuum is an effective ... The tools are easy to put on and take off. The manufacturer has stripped away all the unnecessary attachments that make vacuums confusing ...

Airsign’s reimagining of the humble vacuum cleaner features a powerful HEPA-14 filter with charcoal, so that it catches 99.995 per cent of particles over 0.3 microns, states the company, making it one ...