How do I set up my HPA5100 Air Purifier for the first time?

First, ensure the unit is powered off and unplugged, then select a firm, level location with the front facing away from walls or furniture. Remove the front grille, take out the pre-filter and HEPA filters, remove protective plastic wrap, and reinstall filters with red removal tabs facing outward. If using optional Enhanced Odor and VOC filters, place them in front of the HEPA filters. Finally, secure the pre-filter in front and replace the front grille by inserting the tabs into slots and pushing gently until secure. (Page 5)