Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Jackson Mann K 8
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: 4.8 Max ACH: 13.1 Avg ACH: 9.1 eACH: 0
Filter MERV: ---
Percent Outside Air: 69.8
ON and Ventilates Entire Indoor Area: Yes
Vent Clearance min 6 ft: Yes
No of Rooms: 6 sqft: 965.7 cuft: 9657 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 A216. Diffuser air volume (cfm) 1134. % Outside air 70. Calculated air volume (cfm) outside 794. Calculated air volume (cfm) return 340. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 1083. ACH outside 6.3. ACH merv filter return air 2.3. ACH total 8.6.

Room A246. Diffuser air volume (cfm) 1721. % Outside air 70. Calculated air volume (cfm) outside 1205. Calculated air volume (cfm) return 516. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 1644. ACH outside 9.6. ACH merv filter return air 3.5. ACH total 13.1.

Room A316. Diffuser air volume (cfm) 631. % Outside air 70. Calculated air volume (cfm) outside 442. Calculated air volume (cfm) return 189. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 603. ACH outside 3.5. ACH merv filter return air 1.3. ACH total 4.8.

Room A420. Diffuser air volume (cfm) 1570. % Outside air 70. Calculated air volume (cfm) outside 1099. Calculated air volume (cfm) return 471. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 1499. ACH outside 8.7. ACH merv filter return air 3.2. ACH total 11.9.

Room Utility. Diffuser air volume (cfm) 90. % Outside air 70. Calculated air volume (cfm) outside 63. Calculated air volume (cfm) return 27. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 86. ACH outside 4.2. ACH merv filter return air 1.5. ACH total 5.7.

Room 101. Diffuser air volume (cfm) 290. % Outside air 100. Calculated air volume (cfm) outside 290. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 290. ACH outside 1.8. ACH total 1.8.

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.