Kalli Folk

National Director of Hospitality & Cleaning Programs, ESFM

Kalli Folk is ESFM’s national director of hospitality & cleaning programs and brings a wealth of experience and a forward-thinking approach to janitorial programming. While driving a culture of hospitality, Folk leads the implementation of ESFM’s proprietary, self-performed janitorial program, eClean, which obtained ISSA’s CIMS and CIMS-GB certifications with honors.


Articles by Kalli Folk

QR Codes Versus Sensors
July 16, 2025 Kalli Folk

QR Codes Versus Sensors

Technology and Trends

Not all smart restroom solutions are created equal. Choosing the right data strategy starts with understanding the available options: QR codes and sensors.

Article