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US Air Quality Standards
How does this Federal Standard 209E (the standard for particulate concentration in cleanrooms) relate to our daily lives? Through this chart of benchmark readings, it begins to
depict the densities of respirable particles in our environment.
Video Winding Lab ................ 2,657
TFP Cleaned Laboratory ........... 3,287
Photo Film Converting Room ....... 6,440
Sewage Treatment Control Room .... 8,515
Operating Room ................... 17,170
Hospital Scrub Area .............. 27,480
Corridor to Operating Rooms ...... 38,610
Sterial Recovery Station ......... 42,980
Master Control Room .............. 43,909
Stock Exchange Data Center ....... 46,770
Digital Graphics ................. 59,722
Hospital Intensive Care Unit ..... 73,700
US Federal Standard 209-E ........ 100,000
Class (A) Office Tower ........... 104,678
Animal Hospital Operating Room ... 129,310
Stock Exchange (trading floor) ... 155,250
Flower Shop ...................... 245,170
Mortuary Preparation Room ........ 307,550
Printing Plant ................... 365,776
Bakery ........................... 465,437
Dry Cleaners ..................... 495,130
Animal Hospital Kennels .......... 541,628
Dental Laboratory ................ 651,250
Exotic Bird Pet Shop ............. 752,830
Pro Sports Locker Room ........... 856,720
Underground Garage ............... 1,298,570
Rexidential Forced Air Furnace ... ??000,000??
Note: Laser particle scanner benchmark spectrum prepared for Ontario Lung Association Breathing '94. Particulate
and mineral fiber concentration measurement in thousands of particles per cubic foot of air.
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