The Speck detects fine particulate matter (PM2.5) in your indoor environment and informs you about changes and trends in particle concentration. Our mission is to provide an affordable tool that makes the invisible visible, and empowers you to make informed decisions about how to improve your personal air quality. Use Speck to test whether your vacuum exudes particles, whether your cleaning products are making your employees cough, whether your kitchen range hood exhausts to your child’s bedroom and more.