We estimate each of our units to have a square foot (sq. ft.) coverage for the average room(s). A 1,000 sq. ft. apartment with two adults is ideal for our AO1000 unit. However, if that 1,000 sq. ft. apartment has a family of 4, 2 dogs, and a cat the contaminants present in the air are dramatically different and require either a more powerful unit (AO3000) or multiple units. All of our units provide extremely large coverage areas for their size compared to the competition. Not only do we purify the air; we actively sanitize the surfaces. Many well known and popular air purifiers will not even say how much coverage their air purifiers are supposed to have, and if they do, you'd be surprised at how little they claim to cover (i.e. $800 for a single room, vs our $400 unit for 1,000 sq. ft.). Due to the variables involved (contaminant sources, special needs, building layouts, etc.) the coverage we list for each unit is only an estimate and may require you to adjust the number or size of units in your home or facility.
Airflow issues, multiple stories, and portability: Beyond contamination levels, air flows can assist or limit the effectiveness of our units. A bedroom or basement with a door often left closed will seal off that room from the rest of the house. Our units are clearly not effective if a door or other obstacle prevents good airflow between the spaces. In such cases a unit for each space is needed. In addition, multiple stories can actually be better than a long single story floor plan. We often recommend at least 1 unit per story, but if budgets are an issue, placing a single unit in a central location in the upper story will be better. Lastly, our units are very compact and very light weight in proportion to their power. Our largest residential unit is less than 8 lbs. This makes them portable to move about the house as needed if budgetary restrictions make multiple units not feasible.
