For preschool & early-learning spaces
A clearer view of your classroom air
From morning arrivals to afternoon pickup, Pasoh, Metalmark’s environmental sensor network, helps you see how conditions change in the classrooms you monitor.
Start with our sensors and dashboard, with practical help from Metalmark when you need it.

What can you learn
about your rooms?
You may already have air cleaners, AC systems, and mini-splits to make your indoor environment comfortable for the kids. Pasoh gives you measured conditions so you have more information for your decisions.
Do conditions differ
between classrooms?
What changes during
the school day?
What happens indoors
during outdoor smoke events?
A day in the classroom
Connect the rhythms you know with observations from the rooms you monitor.

Metalmark platform
Small sensor
Useful perspective
See measured conditions and trends in a web or mobile dashboard, with notifications to help you know when to take a closer look.
- Comfort
- Temperature and humidity
- Particles
- Airborne particles across several size ranges
- Gases
- Carbon dioxide and other environmental signals
- Sound
- Ambient sound levels
See all Pasoh measurements
Temperature, relative humidity, PM0.5, PM1, PM2.5, PM10, carbon dioxide (CO₂), total volatile organic compound (TVOC) index, formaldehyde, carbon monoxide (CO), ozone, nitrogen oxide (NOx) index, and ambient sound level.
Evidence from schools
What school teams
have said about the Tatama air cleaner
“It seamlessly retrofits into our buildings, requires a fraction of maintenance, cleans the air, and monitors air quality!”
“Noise was not an issue at all!”
Tatama® self-renewing air cleaner

Practical options for your space
Pasoh helps you see what is happening in monitored rooms. If you want to act on what you find, Metalmark can help you consider Tatama air cleaning and how it might fit your building.
Minimal upkeep
Tatama’s patented self-renewing filtration system is designed to reduce replacements with up to 10x time and maintenance savings
Designed for existing spaces
In-ceiling mounted unit that becomes invisible
Award-winning efficacy
The self-renewing technology powering Tatama was awarded a winner of the U.S. EPA’s Cleaner Indoor Air During Wildfires Challenge
Let’s talk about
your classrooms
See Pasoh in action, discuss a deployment, or explore air cleaning for your early-learning spaces.
Tell us a little about your organization and what you’d like to understand.