The number of air purifiers your business needs depends on how much air needs to be cleaned, not simply how many square feet are in the building. For most commercial spaces, start with four things: Room volume The airflow you want to achieve The airflow each purifier provides How the space is divided A large open office may be able to use one high-capacity...

HEPA and MERV filters both remove particles from the air, but they are not the same type of filtration rating. For a commercial building, the better choice depends on where the filter will be used and how much particle removal the building needs. In simple terms: MERV filters are commonly used inside HVAC systems HEPA filters provide much higher particle-removal efficiency and are commonly...

A commercial air purifier can help remove airborne mold spores, but it cannot fix the source of a mold problem. That distinction matters. Indoor mold grows when moisture is present. If a building has a leak, water damage, condensation, or another moisture problem, an air purifier will not stop mold from growing on walls, ceilings, furniture, or other materials. The moisture problem still needs...