Step 1: Fill out the Support Request Form If you think you need to send your UPAS to us for service—...
"How do people wear the UPAS?" Below, we discuss factors you should consider when figuring out the b...
How do outdoor particulate matter concentrations measured using Ultrasonic Personal Air Samplers (UP...
Timestamps in UPAS log files In log files written by Ultrasonic Personal Air Samplers (UPAS), you'll...
Are you new to particulate matter (PM) sampling? Have you purchased gravimetric sample analysis serv...
What is duty cycling? Duty cycling refers to the practice of operating the Ultrasonic Personal Air S...
Our air samplers are durable. A customer once sent a UPAS in for service that had a record 8000+ hou...
We’re a team of mostly scientists and engineers and that means we’re going to come up with nerdy som...