Filter Queen Defender RAC-4000A HEPA 360 Degree 3 Speed Air Purifier Cleaner Clocks It has the lower stack

It has the lower stack flat window installed but does not have the 30-1/2 x 22 glass & sash above

Right out of the box

Installs easy on sloped or flat roofs

Olympus dedicated digital optics coupled with the Evolt E500 render sharpness and contrast more consistently at any given f-stop

000 psi/ 700 bar

Filter Queen Defender RAC-4000A HEPA 360 Degree 3 Speed Air Purifier Cleaner Clocks It has the lower stack3X BETTER THAN HEPA Traditional HEPA filters filter 99. 95% down to 0. 3 microns. The Defender filters 99. 99% down to 0. 1 microns. USED IN HOSPITALS ACROSS THE WORLD The Defender is used in high risk environments to prevent airborne infection QUALITY THAT LASTS The Defender is backed by a lifetime perpetual warranty. As long as you replace your filters, this machine is covered for life! BUILT IN THE USA Health Mor has been building quality