Instructions for the Holmes HAP412 Series HEPA Air Purifier

The Holmes HEPA air purifier is a tower filter that filters the air to eliminate allergens and contaminants that can irritate the lungs and cause difficulty breathing.

Proper assembly and consistent use of the filter will help ensure that you maintain the highest possible quality of air in your home. Replacement filters are sold at household supply stores and directly from Holmes.

Place the purifier on a level surface. Grasp the purifier's front grill cover and pull it toward you to remove it.

Pull the filter cartridge out of the purifier. Remove the plastic bag from the filter. Place the filter into the purifier and snap the plastic clip down over the hook on the filter cartridge to secure the cartridge inside the purifier.

Snap the grill cover back on the front of the purifier. Press it into place until it locks. Plug the power cord into an outlet.

Select the operating speed you prefer. The purifier has low, medium and high options. Slide the switch to the preferred speed. Holmes recommends setting the filter to medium speed for regular filtering and turning it up to high when many contaminants are detected in the air. The low setting offers quieter operation when it's necessary.

Check the filter's condition every three to four weeks. Replace the filter when it is visibly dirty.

About the Author

Tara Kimball is a former accounting professional with more than 10 years of experience in corporate finance and small business accounting. She has also worked in desktop support and network management. Her articles have appeared in various online publications.