Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Hurley Joseph 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: Natural Ventilation Windows and Limited Univent HVAC
Min ACH: 2.2 Max ACH: 4.7 Avg ACH: 3.5 eACH: 0
Filter MERV:
Percent Outside Air: 72.5
ON and Ventilates Entire Indoor Area: Yes
Vent Clearance min 6 ft: Yes
No of Rooms: 6 sqft: 828 cuft: 8280 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 102. % Outside air 77. Calculated air volume (cfm) outside 391. Calculated air volume (cfm) return 114. Combined air volume (cfm) 505. ACH outside 2.5. ACH merv filter return air 0.7. ACH total 3.3. ACH Copy paste check (uses total or outside) 2.5.

Room 112. % Outside air 59. Calculated air volume (cfm) outside 255. Calculated air volume (cfm) return 175. Combined air volume (cfm) 430. ACH outside 1.3. ACH merv filter return air 0.9. ACH total 2.2. ACH Copy paste check (uses total or outside) 1.3.

Room 203. % Outside air 81. Calculated air volume (cfm) outside 561. Calculated air volume (cfm) return 129. Combined air volume (cfm) 690. ACH outside 3.5. ACH merv filter return air 0.8. ACH total 4.3. ACH Copy paste check (uses total or outside) 3.5.

Room 207. % Outside air 71. Calculated air volume (cfm) outside 545. Calculated air volume (cfm) return 220. Combined air volume (cfm) 765. ACH outside 3.4. ACH merv filter return air 1.4. ACH total 4.7. ACH Copy paste check (uses total or outside) 3.4.

Room 201. % Outside air 58. Calculated air volume (cfm) outside 390. Calculated air volume (cfm) return 280. Combined air volume (cfm) 670. ACH outside 2.4. ACH merv filter return air 1.7. ACH total 4.1. ACH Copy paste check (uses total or outside) 2.4.

Room 215. % Outside air 20. Calculated air volume (cfm) outside 93. Calculated air volume (cfm) return 378. Combined air volume (cfm) 471. ACH outside 0.7. ACH merv filter return air 2.7. ACH total 3.4. ACH Copy paste check (uses total or outside) 0.6.

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.

Serial Number: CAB-1701-05172025
Not valid without serial number.


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