Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Madison Park Technical Vocational
Address: address
City: Boston
State / Province: MA
Country: USA
Date: 03/21/2021
Data Source: School District
Performed by: External Company
Company Name Address Contact: Cashins & Associates, Inc. 599 North Ave #8, Wakefield, MA 01880
Requirement Source: Boston School 3 ACH guideline

Technology: Central HVAC
Min ACH: 4.6 Max ACH: 12.3 Avg ACH: 7.8 eACH: 0
Filter MERV: 13
Percent Outside Air: 69.8
ON and Ventilates Entire Indoor Area: Yes
Vent Clearance min 6 ft: Yes
No of Rooms: 6 sqft: 1125 cuft: 11250 No of Buildings: 1

Comments: Source Boston School District March 18, 2021. https://www.bostonpublicschools.org/Page/8463 . https://drive.google.com/file/d/1bzam7XeMQDjjv7Og_86PS41K78hBEOfT/view . assumed 10ft ceiling. wACH windows provided in dataset. Calculated wACH from measured CFM rates in dataset do not match. Differences due to errors. Did not use calculated wACH.

Room 7-245. Diffuser air volume (cfm) 780. % Outside air 70. Calculated air volume (cfm) outside 546. Calculated air volume (cfm) return 234. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 745. ACH outside 4. ACH merv filter return air 1.5. ACH total 5.5.

Room 7-275. Diffuser air volume (cfm) 2601. % Outside air 70. Calculated air volume (cfm) outside 1821. Calculated air volume (cfm) return 780. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 2484. ACH outside 9. ACH merv filter return air 3.3. ACH total 12.3.

Room 7-341. Diffuser air volume (cfm) 2120. % Outside air 70. Calculated air volume (cfm) outside 1484. Calculated air volume (cfm) return 636. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 2025. ACH outside 7.4. ACH merv filter return air 2.7. ACH total 10.1.

Room 7-365. Diffuser air volume (cfm) 511. % Outside air 70. Calculated air volume (cfm) outside 358. Calculated air volume (cfm) return 153. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 488. ACH outside 3.4. ACH merv filter return air 1.2. ACH total 4.6.

Room 7-384. Diffuser air volume (cfm) 1255. % Outside air 70. Calculated air volume (cfm) outside 879. Calculated air volume (cfm) return 376. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 1199. ACH outside 5.7. ACH merv filter return air 2.1. ACH total 7.8.

Room 123. Diffuser air volume (cfm) 573. % Outside air 70. Calculated air volume (cfm) outside 401. Calculated air volume (cfm) return 172. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 547. ACH outside 2.1. ACH merv filter return air 0.8. ACH total 2.9.

In the wake of the COVID-19 disaster many are calling for a paradigm shift in how citizens and government officials think about the quality of the air we breathe indoors. This Clean Air Certificate lets you know that those who operate this building are thinking about the air that we breathe in this building. They have disclosed the ventilation performance of this building so that we all become educated and we never have another indoor infection disaster again.