Case Study Public School Iowa

EnviroKlenz® in an Iowa School

An indoor air quality case study.

Study Background

EnviroKlenz conducted case studies with educational partners at various locations in the United States during the COVID-19 pandemic.  EnviroKlenz Air System Plus was deployed and operational alongside an air meter that measures and records particulate matter. The EnviroKlenz Air System utilizes multi-stages of filtration consisting of patented technology for a broad array of contaminates, UVC (254 nm wavelength), and HEPA.  The air meter provides real-time estimates of particulate matter concentrations (PM1, PM2.5, PM10) and particle size distribution using a combination of multiple light scattering-based particle sensors.

The systems ran in operational educational environments with daily schedules being carried out as usual.

Increases and decreases in the particulate matter were observed as expected given the conditions with the air monitor.

The results from this case study with the EnviroKlenz Air System Plus were compared to particulate matter data from the Environmental Protection Agency (EPA).  From 2000-2019, the EPA, through a nationwide network of over 400 monitoring sites, developed ambient air quality trends for PM 2.5 particle pollution, representing fine inhalable particles, with diameters that are generally 2.5 micrometers and smaller.  In the EnviroKlenz case studies, a broader range of particles was monitored, all with similar trends, but for illustration purposes, the data collected aligned to the size range of the EPA data is shown by plotting the national standard and the top 10 percentile for air quality for comparison.

Test Details

Testing Period: 01/14/2021 – 03/30/2021

Setting: Classroom in a School

Equipment Used: (1) EnviroKlenz Air System Plus and (1) lab-grade aerosol measurement instrument. Readings were captured in the ranges of PM10, PM2.5, and PM1 (sub-micron-sized)

Running Time: The EnviroKlenz Air System Plus is run only during school hours.

Monitor status: Kept on throughout the testing period

Observation: Spikes can be seen during class hours. However, you can see that the EnviroKlenz Air System Plus kept the PM2.5 concentration at a level that is better than 90% of the measured indoor environments, according to the EPA.

At an Iowa School, one EnviroKlenz Air System Plus was used per classroom. The air purifiers were shut off during winter break and restarted on 1/14/2021. A steep drop in PM can be seen over the first 48 hours of running the air systems. The air purifiers will typically be run only during class hours.

Comparison to National Average

The monitoring area was able to maintain PM2.5 levels at or below the EPA national standard.

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