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Coiled cable used to connect to a Certifier Plus™ High Flow Module or Low Flow Module to the Certifier Plus™ Interface Display Module.

Rechargeable lithium-ion battery for the model 4089 Certifier Plus™ Interface Display Module.

22 mm airway pressure tee fitting with screen.

Firefighters face extreme heat, toxic smoke, and physical strain. Monitoring heat stress and implementing preventive measures are crucial to help protect their health and support their vital mission.

As our only full-flow Condensation Particle Counter (CPC), the 3750 provides optimal counting statistics, making it ideal for low-concentration applications.

TSI® has developed and manufactured state-of-the-art aerosol and particle instruments for various research applications. Read the articles!

Want to learn more about why air qualuity matters, how it is measured, and how it affects everyone across the globe? Dig deeper into the science by reading the resources listed on this page

The health effects of air pollution are profound and can affect almost every organ system in the body.