Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Quincy Josiah Elementary
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: 9.3 Max ACH: 17.9 Avg ACH: 13.4 eACH: 0
Filter MERV: ---
Percent Outside Air: 69.3
ON and Ventilates Entire Indoor Area: Yes
Vent Clearance min 6 ft: Yes
No of Rooms: 6 sqft: 817.4 cuft: 8174 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 103. Diffuser air volume (cfm) 932. % Outside air 70. Calculated air volume (cfm) outside 652. Calculated air volume (cfm) return 280. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 890. ACH outside 6.9. ACH merv filter return air 3. ACH total 9.9.

Room 206. Diffuser air volume (cfm) 2544. % Outside air 70. Calculated air volume (cfm) outside 1781. Calculated air volume (cfm) return 763. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 2430. ACH outside 10.4. ACH merv filter return air 3.8. ACH total 14.2.

Room 216. Diffuser air volume (cfm) 2072. % Outside air 70. Calculated air volume (cfm) outside 1450. Calculated air volume (cfm) return 622. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 1979. ACH outside 12. ACH merv filter return air 4.4. ACH total 16.4.

Room 307. Diffuser air volume (cfm) 856. % Outside air 70. Calculated air volume (cfm) outside 599. Calculated air volume (cfm) return 257. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 817. ACH outside 13.1. ACH merv filter return air 4.8. ACH total 17.9.

Room 317. Diffuser air volume (cfm) 2567. % Outside air 70. Calculated air volume (cfm) outside 1797. Calculated air volume (cfm) return 770. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 2452. ACH outside 9.7. ACH merv filter return air 3.5. ACH total 13.2.

Room 102. Diffuser air volume (cfm) 360. % Outside air 100. Calculated air volume (cfm) outside 360. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 360. ACH outside 2.6. ACH total 2.6.

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.