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408.2.1
All air-ventilation systems shall comply with code requirements of this section and shall have filter bank efficiencies as listed in Table 4-B.
408.2.2
Noncentral recirculating air systems providing cooling to high heat producing equipment located in nonsensitive areas shall have a filter with minimum efficiency reporting value (MERV) of 6 based on ASHRAE 52.2.
408.2.3
Noncentral air systems serving any areas not listed in Table 4-B shall have a filter with minimum efficiency reporting value (MERV) of 6 based on ASHRAE 52.2.
408.2.4
Noncentral recirculating air handling systems, for example, through-the-wall units, fan coil units, and heat pumps may be utilized for single patient rooms of one or more beds. Filtration for these units shall have a filter with minimum efficiency reporting value (MERV) of 6, based on ASHRAE 52.2. The air ventilation system providing the minimum air changes of outdoor air shall comply with Table 4-B. These units may be used as recirculating units only. All outdoor air requirements shall be met by a separate central air handling system.
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408.2 Ventilation Air, Filters for Hospitals
All air-ventilation systems shall comply with code requirements of this section and shall have filter bank efficiencies as listed in Table 4-B ...
408.2 Ventilation Air, Filters for Hospitals
All air-ventilation systems shall comply with code requirements of this section and shall have filter bank efficiencies as listed in Table 4-B ...
408.2 Ventilation Air, Filters for Hospitals
All air-ventilation systems shall comply with code requirements of this section and shall have filter bank efficiencies as listed in Table 4-B ...
408.2.2 Ventilation Air,
Noncentral recirculating air systems providing cooling to high heat producing equipment located in nonsensitive areas shall have a filter ...
408.2.3 Ventilation Air,
Noncentral air systems serving any areas not listed in Table 4-B shall be provided with filter arrangement and efficiency specifically approved ...