Melody Simmons at Baltimore Business Journal reports St. John Properties has ordered 23 Maryland Class A office properties and other commercial developments to be upgraded with a new indoor air purification system. Besides ultraviolet rays, the upgrades will include new HVAC filters and upgrades to the system’s self-cleaning system of its coils. See https://www.bizjournals.com/baltimore/news/2021/04/06/st-john-properties-hvac-upgrades-offices.html
Developer plans HVAC upgrades at 23 of its Baltimore-area commercial properties
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