Figure: 25 TAC §135.56(b)
| Area Designation | Number of Filter Beds |
Filter Bed No. 1 (Percent, MERV*) |
Filter Bed No. 2 (Percent, MERV*) |
|---|---|---|---|
| General procedure operating rooms, patient care areas, treatment, diagnostic, those areas providing direct service or clean supplies such as sterile and clean processing, and related areas. |
2 | 30, 8 | 90, 14 |
| Laboratories | 1 | 80, 13 | ---- |
| Administrative, bulk storage, soiled holding areas, and laundries |
1 | 30, 8 | ---- |
* MERV - Minimum efficiency rating value (American Society of Heating Refrigeration and Air-Conditioning Engineers (ASHRAE) Standard 52.2, 1999 edition.
NOTES:
• Additional roughing or prefilters should be considered to reduce maintenance
required for filters with efficiency higher than 75%.
• The filtration efficiency ratings are based on ASHRAE Standard 52.1, 1992 edition.