Do you wake up each morning with a stuffy nose? Or perhaps you've noticed that your office seems to collect dust along with paperwork? Indoor environments are often more polluted than outdoors and some rooms are worse than others. The Guardian Angel is a portable, true HEPA air purifier with 5 stages of filtration that removes 99.97% of contaminants as small as 0.3 microns from the air. Perfect for areas where you spend most of your time, the Guardian Angel protects you and your family from the harmful side-effects caused by indoor air pollution.