Austin Air Healthmate Air Purifier Machine in Sandstone (B400) - MADE IN USA! The Austin Air Purifier is very effective at removing particles in the air including dust, pollen and smoke elements.It's also great at removing chemicals and gases from the air, and it even removes viruses and bacteria! Austin Air Purifiers are an excellent choice for those with chemical sensitivities, as they were designed to replicate a Hospital Clean room! The Austin Air (standard machine 400 series) will cleanse the air for areas up to 1,500 sq ft. Developed by the Atomic Energy Commission to specifically protect the Human Respiratory System, True HEPA is the most effective particulate filtering media on the market. All Austin Air units use TRUE Medical Grade HEPA, which removes 99.97 percent of all particulates as small as 0.3 microns and 95 percent of particulates 0.1 microns and smaller. Benefits of Clean Air include: sounder sleep, strengthened immune system, eliminated dry mouth and runny nose as well as reduced; snoring, sneezing, coughing, wheezing and nighttime allergies/asthma attacks.&nbsp; And if that wasn't enough, all Austin Air products are made in the USA!