Dyson's newest vacuum has a laser that can detect microscopic dust

Most of us have accept that our vacuums can't pick up every little thing that the human eye just can't see. Dyson wasn't satisfied with this and created the V15 detect, a vacuum that integrates a laser to reveal the particles you never see. And it doesn't end there, the vacuum ha a piezo sensor that can count and measure the size of dust particles and an LCD display shows you exactly the size of the particles being cleaned up, down to >10µm, which is the size of allergen and pollen. 

$699, dyson.com