Daikin, Minneapolis, Minnesota, has added a vertical configuration to its PreciseLine air handlers. Compliant with ASHRAE 62.1-2019 standards for high IAQ, PreciseLine air handlers include many technologies and design elements to minimize pathogens and allergens. The system can be equipped with up to MERV 13 filters, which capture particles as small as .3 to 1 micron, such as legionella and spores. Its double-wall panel construction also keeps conditioned air in the cabinet until it’s delivered to the intended space, reducing the potential for contact with contaminants. Direct-drive fan technology eliminates the possibility of rubber particles from entering the airstream as well, a common occurrence with belt-driven fans. Plus, an easy-to-clean cabinet and stainless-steel drain pan mitigate the risk of mold and mildew growth.