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External Lab Tests for Electrostatic Filter of Suction Tube 1

 

v     ASHRAE 52.2 test; KCl Contaminant. Temperature and Humidity conditioning of
electrostatic filter media by LMS Technologies.

Initial efficiency of flat sheet media was measured at rated velocity according to ASHRAE 52.2 standard’s particle channel sizes.

Upon completion of efficiency measurement, the media was exposed to 99Co plus 95%
humidity for a period of 4 hours.

The media was dried in ambient environment for at least 3 hours or until operator was assured
that the media was completely dry.

Secondary efficiency test on the conditioned sample was performed and as such,
the effect of the conditioning step was measured.

 

Electrostatic Filter

Initial

Condition

Size Range (micron)

% Efficiency

DP (“H2O)

0.080

0.083

0.3-0.4

99.802

98.288

0.4-0.55

99.910

99.123

0.55-0.7

99.974

99.635

0.7-1.0

99.983

99.817

1.0-1.3

99.995

99.914

1.3-1.6

100.000

99.950

1.6-2.2

100.000

99.990

2.2-3.0

100.000

99.998

3.0-4.0

100.000

100.000

4.0-5.5

100.000

100.000

5.5-10.0

100.000

100.000

 

v     NIOSH N-99 TESTS

Ultrasonic Sample Evaluation #5 for N99 Filters (NaCl tested)

Filter of 3.218” diameter; tests done on 2.875” test plate.

Flow Rate

(LPM)

Target Weight (gr.)

Disc Weight (gr.)

Resistance

(initial)

Penetration

(initial)

Penetration

(Peak)

Time

(minutes)

42.5

2.094

2.084

13.30

0.051

0.082

9

 

v     BACTERIAL FILTRATION Efficiency & Differential Pressure.

Performed by NELSON Laboratories, L.L.C  Lab

Challenge Level (CFU)

Total CFU recovered

Filtration Efficiency

Delta P

mm H2O/cm2

6.9X106

0

>99.99999%

1.5

6.9X106

0

>99.99999%

1.5

 

v     VFE (VIRUS) AT AN INCREASED CHALLENGE LEVEL

Performed by NELSON Laboratories, L.L.C  Lab

Challenge Level (PFU)

Total PFU Recovered

Filtration Efficiency

4.2X106

<1

99.99998%

4.2X106

<1

99.99998%

 

1Above Tests were not performed on Suction Tube but refer to the same type of filter used in the Suction Tube.

 

The information supplied in this document is for guidance only,
and should not be construed as a warranty.

 

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