Sentry Air Systems has performed multiple efficiency tests over the years. In this particular study, we tested the efficiency of our HEPA filter in a Sentry Air Ductless Spray Hood while spraying Colorplace Interior/Exterior Fast Dry Spray Paint. Overall, 40 cans (400 oz.) were sprayed.
3 Standard Filters were loaded into the Spray Hood:
The Sentry Air HEPA Filter [up to 99.97% efficient on particles 0.3 microns and larger]
The Pre-filter Pad
To determine the longevity of the HEPA filter, the airflow was measured throughout the test.
The initial airflow measurement was 138 Feet per Minute.
Post- Test Results: After 40 cans of spray paint, airflow measurements were unchanged with an error rate of ± 5 FPM.
The Particle Count at the outlet of the Spray Hood during Spraying Operation [using a Laser Particle Scan Pro]: 0
For the pdf version of these test results, please click here.
If you have any questions about this test or Sentry Air’s Ductless Spray Hoods, please give us a call at 800.799.4609 or email us at email@example.com.