<html> <head> <title>Rule 44:76:12:11 Air filters.</title> <META NAME="Keywords" Content="Administrative Rules 44:76:12:11"> <META NAME="Description" Content="Administrative Rules 44:76:12:11 Air filters."> <meta http-equiv=Content-Type content="text/html; charset=windows-1252"> <meta name=Generator content="Microsoft Word 14 (filtered)"> <style> <!-- /* Font Definitions */ @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;} @font-face {font-family:Times; panose-1:2 2 6 3 5 4 5 2 3 4;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0in; margin-bottom:.0001pt; punctuation-wrap:simple; text-autospace:none; font-size:10.0pt; font-family:"Times","serif";} @page WordSection1 {size:8.5in 11.0in; margin:1.0in 1.0in 1.0in 1.0in;} div.WordSection1 {page:WordSection1;} --> </style> </head> <body lang=EN-US> <div class=WordSection1> <p class=MsoNormal style='text-align:justify;line-height:12.0pt'><a name="_GoBack"></a><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>44:76:12:11.&nbsp;&nbsp;Air filters.</b> A ventilation system shall be equipped with a minimum of two filter beds. Filter bed number one shall be located upstream of the conditioning equipment and shall have a minimum efficiency of 30 percent. Filter bed number two shall be located downstream of the conditioning equipment and shall have a minimum efficiency of 90 percent. Central systems serving other than sensitive areas shall be provided with filters rated at 80 percent efficiency. These filter efficiencies shall be warranted by the manufacturer and shall be based on the ASHRAE 52.2, 2007 edition, American Society of Heating, Refrigeration, and Air Conditioning Engineers dust spot test method with atmospheric dust. The exhausts from all laboratory hoods in which infectious or radioactive materials are processed shall be equipped with filters with a 99 percent efficiency. Filter frames shall be durable and shall provide an airtight fit with the enclosing ductwork. All joints between filter segments and the enclosing ductwork shall have positive seal against air leakage.</span></p> <p class=MsoNormal style='text-align:justify;line-height:12.0pt'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>&nbsp;</span></p> <p class=MsoNormal style='text-align:justify;line-height:12.0pt'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>Source:</b> 42 SDR 51, effective October 13, 2015.</span></p> <p class=MsoNormal style='text-align:justify;line-height:12.0pt'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>General Authority:</b> SDCL <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=34-12-13">34-12-13(2)</A>, (3), and (14).</span></p> <p class=MsoNormal style='text-align:justify;line-height:12.0pt'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>Law Implemented:</b> SDCL <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=34-12-13">34-12-13(2)</A>, (3), and (14).</span></p> <p class=MsoNormal style='text-align:justify;line-height:12.0pt'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>&nbsp;</span></p> <p class=MsoNormal style='text-align:justify;line-height:12.0pt'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>Reference:</b> &quot;ASHRAE 52.2,&quot; 2007 edition, American Society of Heating, Refrigeration, and Air Conditioning Engineers, 1791 Tullie Circle, N.E., Atlanta GA 30329. Phone: 1-800-527-4723. Cost: $39.00.</span></p> <p class=MsoNormal style='text-align:justify;line-height:12.0pt'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>&nbsp;</span></p> </div> </body> </html>