Kepri™
UV LED Upper-Air System
Excelitas Canada Inc. 2022
All rights reserved
035-xxxxxR, rev.1
20
035-00725R
Figure 18 Mechanical Specifications
– Mounting Bracket
8.7 Room Dosing
The historic UVGI dosing criteria of 12mW/m
3
is primarily based on disinfection tests for Tuberculosis.
Given the recent COVID-
19 pandemic, Kepri was tested against a virus, Coliphage φX174, to correlate
better its disinfection capability to SARS-CoV-2, the virus that causes COVID-19. Disinfection rates are
highly dependent on air mixing, and your results may differ. The following effective air exchange (ACH)
data should only be used as a best-case guideline.
Effective Air Exchanges per Hour (ACH)
4
6
8
10
12
14
16
18
20
ft
2
(m
2
)
100 (9.30)
150 (13.9)
200 (18.6)
250 (23.2)
300 (27.9)
Notes
•
Effective air exchanges per hour (ACH) for a room with a 10ft (3.0m) ceiling.
•
Values are extrapolated from Intertek test data dated Dec 17, 2021, available on our website.
Original single point test measured a 99.9% reduction of Coliphage φX174 (typical single
stranded virus) in 20 minutes. Effective air exchanges for other pathogens will differ.
•
The times given assume perfect air mixing within the space (i.e. mixing factor = 1). Disinfection
rates are dependent on air mixing. The following effective air exchange (ACH) data should only
be used as a best-case guideline.
