This is the summary of consumer reviews for Holmes Desktop HEPA Air Purifier with Visipure Filter Viewing Window. The BoolPool rating for this product is Very Good, with 4.40 stars, and the price range is $32 - $50.

The Holmes Desktop HEPA Air Purifier with Visipure Filter Viewing Window is a very small but powerful machine that combines the power of a HEPA grade filter with the odor-eliminating features of Arm and Hammer to purify rooms and homes in an instant. The air purifier eliminates allergens, dust, dirt and other irritants within days of consistent use. Plus, it's easy to know when the filter needs replacement with a see-through window showing when to change it out so the machine runs at optimal quality.

Customers say this product works well to remove 99% of airborne particles and creates a noticeable difference. Three speeds of the internal fan makes this adjustable depending on how quiet or loud the user wants it to be, but most say this is a very quiet and barely noticeable machine that does the job without making a racket. Others say the quiet fan noise helps them to fall asleep.

Some say the fan is loud. Most disagree with this complaint.