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A quantitative fit test evaluates a respirator's fit by measuring particle concentrations inside and outside a mask while the wearer performs movements. Lean how a fit test is actually being performed.

Oxygen therapy delivers supplemental oxygen to patients with respiratory conditions. Modern oxygen concentrators filter nitrogen from air, providing a safer, more convenient alternative to oxygen tanks.

Find out about key factors to consider when purchasing a ventilation test instrument.

Learn more about how UFPs are measured, why it matters, and the techniques used to capture their presence in the air.

Aerosol generators and dispersers enhance material science research by enabling precise control over particle size, distribution, and concentration for various applications and studies.

TSI instruments supported Army scientists in Fort Detrick’s "sneeze lab," aiding research on airborne virus transmission and particle analysis to advance vaccine development efforts.

TSI experts studied how household appliances impact indoor air quality, revealing high particle emissions from appliances like ovens.