Over 300 City M room air purifiers were installed in classrooms throughout the school system with limited or non-existing central HVAC systems. Two elementary schools were selected for detailed evaluation to determine if the units improved classroom air quality.Particle counters were used to establish a baseline before the City M air purifiers were activated and before students entered the two facilities. The particle count per cubic foot was based on three size ranges – 0.3 - 0.5 microns, 0.5 - 1.0 microns and 1.0 - 5.0 microns. All the micron sizes are far too small to be seen but are potentially hazardous to student health.
After a baseline of initial air quality was established, nearly 2,000 separate counts were conducted on the three particle sizes. A data evaluation was conducted to determine air quality improvement in the classrooms with City M air purifiers.
The City M provided a safer environment for teachers and students to facilitate a return to in-school learning
The City M air purifier delivered noticeably improved indoor air quality. Particle counts in all three size ranges dropped significantly when the City M air purifiers were activated in classrooms with or without students and faculty. In addition, it was determined the units added a minimum of two ACH (air changes per hour) which improved the overall room ventilation. Click here to download the full case study and view the proof behind the results.