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Testimonials > Test Results.
                                                                                                

 

Documented Test Results:  Dust Director™,  Dust Collector® Vacuum.

Test 1.  Dust Director's™ Effectiveness in Controlling Silica Dust, by
IMI - International Masonry Institute and CPWR - Center To Protect Workers' Rights, October 2001

The following test results were based on a study conducted at the BAC (Bricklayers and Allied Craftworkers') Apprentice Training Center in Bordentown, NJ, by IMI and CPWR (the safety and health arm of the AFL-CIO's Building and Construction Trades Department). 

The study compared and evaluated various Controlled and Uncontrolled Masonry Tasks and Tools and their effectiveness in capturing or containing silica dust particles in a work environment.

The table below shows the computer measured test results from the study.

The Dust Director was the only dust control tool that stood out:  Not only was the Dust Director effective in containing the silica dust but, its results were better than the dust control system that used water in controlling the dust.

Tool / Task

Material

Severity Ratio *

Percent
Reduction
(Effectiveness)

Sample
Time (Minutes)

Angle Grinder Dry Grinding

Without using the Dust Director

Using 4" x .250 blade

Mortar between bricks

57 times over the PEL

NA

15

Angle Grinder Dry Grinding

Using the Dust Director

Using 4" x .250 Diamond Blade

Mortar between bricks

1.2 times over the PEL

93.4

50

Dry Cutting w/ Masonry Portable Saw (12" blade)

Block / Brick

48 times over the PEL

NA

16

Wet Cutting w a Stationary Wet Saw (14" blade)

Block / Brick

1.1 times over the PEL

90.6

51

 

 

Documented Results on the Dust Director™ System:

  • Published Test Results,

  • Test Results "below" the NIOSH's established PEL,

  • Worker Approved:  "A tool they will use and continue to use . . . even when I turn my back."  --- Safety Director, Restoration & Waterproofing Contractor, St. Louis, MO.

 

 

Test 2.  Dust Collector® Professional Vacuum Effectiveness in Containing Silica Dust, by Center To Protect Workers' Rights (CPWR) and International Masonry Institute (IMI) Local 5, Bordentown, NJ - Silica Dust Grinding Samples - Respirable Silica, May 8 - 10, 2006

The following test results are sampling done to date on the controls for tuck pointing.  Of the vacuums tested, silica dust exposures were reduced by 86 - 94%.

"Ted Segiel will be happy to hear that his latest vacuum (the Dust Collector® Professional showed the greatest reduction at 94%."

"Another thing to note, without the use of the an actual dust control tool (i.e. dustless guard), exposures were over 100 time the NIOSH  PEL (Permissible Exposure Limit) for Silica.  OSHA PEL (Permissible Exposure Limit) were over 50 times the limit."

"If these were full 8 hour shifts, even with respirators with an assigned protection factor of 10, workers would be over exposed relative to the permissible exposure limit.

"So point being:  respirators may be used to supplement engineering controls, but certainly are not sufficient alone to ensure compliance with OSHA regulations."

The table below shows the computer measured test results from the study.  

Tool / Control

Angle Grinder

Dry Cutting

Using a 4" x .250 diamond blade

Mean Over the PEL

% Reduction

Angle Grinder

without Dust Controls

106 Xs

__

 

Metabo Angle Grinder

Using the Dust Director™

With the Dust Collector® Professional Vacuum

8 Xs

94%

 
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Products manufactured and marketed by and for Dust Director® are protected by patents issued or pending in the United States and other countries.  Dust Director® is a registered US patent and trademark owned by Dustless, Inc., an independently owned and operated company;  all pictures, names and logos reserved.

15061 Route 30
N. Huntingdon, PA  15642
Ph:  412.824.6933
Fax:  412.824.4704

E-Mail ICS - With comments, product questions, etc.

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