FILTER MEDIA FOR IAQ APPLICATIONS

摘要

1. During cooking and cigarette smoking events, indoor concentration of PM2.5 can reach high levels 2.In majority situation MERV 13 filters are sufficient to maintain low level of indoor PM2.5 3. High efficiency filters (HEPA) are required for air purification in China apartments 4. Filters with good efficiency for formaldehyde removal are required for air purification in China.