摘要 |
<p>Purified air is provided, having a TVOC content of from less than 5 ppb to about 500 ppb, a Biologicals content of from less than 1 CFU/M3 to 150 CFU/M3 and a Particulate content of from about 1,000 0.3 mum particles per ft3 to about 50,000 0.3 mum particles per ft3, or from about 600 0.5 mum particles per ft3 to about 500,000 0.5 mum particles per ft3.</p> |