Figure: 25 TAC §131.148(b)
| Area Designation | Number of Filter Beds | Filter Bed No. 1 (Percent, MERV*) | Filter Bed No. 2 (Percent, MERV*) |
|---|---|---|---|
| General procedure patient care areas, treatment, diagnostic, imaging, and 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.