CASE STUDY: PORTLAND ART MUSEUM ProMark media and filters save precious art by removing harmful contaminants in indoor air. CHALLENGE • Chemicals in the air were slowly eroding museum artifacts. • Existing filtration system was 70% efficient for particulates only. • There was no existing gas filtration system and everyday gases ate away at the priceless artwork. SOLUTION A three phase solution was devised and designed by Air Filter Sales and

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