Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Conley George H Elem
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: Natural Ventilation Windows and Limited Univent HVAC
Min ACH: 2.4 Max ACH: 4.8 Avg ACH: 3.3 eACH: 0
Filter MERV:
Percent Outside Air: 81.1
ON and Ventilates Entire Indoor Area: Yes
Vent Clearance min 6 ft: Yes
No of Rooms: 6 sqft: 698.7 cuft: 6987 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 105. % Outside air 83. Calculated air volume (cfm) outside 570. Calculated air volume (cfm) return 119. Combined air volume (cfm) 689. ACH outside 4.0. ACH merv filter return air 0.8. ACH total 4.8. ACH Copy paste check (uses total or outside) 4.

Room 102. % Outside air 87. Calculated air volume (cfm) outside 501. Calculated air volume (cfm) return 77. Combined air volume (cfm) 578. ACH outside 3.5. ACH merv filter return air 0.5. ACH total 4.1. ACH Copy paste check (uses total or outside) 3.5.

Room 202. % Outside air 79. Calculated air volume (cfm) outside 351. Calculated air volume (cfm) return 95. Combined air volume (cfm) 446. ACH outside 2.5. ACH merv filter return air 0.7. ACH total 3.1. ACH Copy paste check (uses total or outside) 2.5.

Room 205. % Outside air 68. Calculated air volume (cfm) outside 237. Calculated air volume (cfm) return 110. Combined air volume (cfm) 347. ACH outside 1.7. ACH merv filter return air 0.8. ACH total 2.4. ACH Copy paste check (uses total or outside) 1.7.

Room 206. % Outside air 85. Calculated air volume (cfm) outside 287. Calculated air volume (cfm) return 50. Combined air volume (cfm) 337. ACH outside 2.0. ACH merv filter return air 0.4. ACH total 2.4. ACH Copy paste check (uses total or outside) 2.

Room 110. % Outside air 23. Calculated air volume (cfm) outside 210. Calculated air volume (cfm) return 686. Combined air volume (cfm) 896. ACH outside 1.8. ACH merv filter return air 5.9. ACH total 7.7. ACH Copy paste check (uses total or outside) 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.

Serial Number: CAB-1694-05152025
Not valid without serial number.


Optional Signature                                                            Date

 

Back