Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Another Course to College
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: 1.6 Max ACH: 3.6 Avg ACH: 2.6 eACH: 0
Filter MERV:
Percent Outside Air: 69.1
ON and Ventilates Entire Indoor Area: Yes
Vent Clearance min 6 ft: Yes
No of Rooms: 6 sqft: 800.4 cuft: 8004 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 135. % Outside air 80. Calculated air volume (cfm) outside 264. Calculated air volume (cfm) return 65. Combined air volume (cfm) 329. ACH outside 1.8. ACH merv filter return air 0.4. ACH total 2.3. ACH Copy paste check (uses total or outside) 1.8.

Room 141. % Outside air 48. Calculated air volume (cfm) outside 152. Calculated air volume (cfm) return 165. Combined air volume (cfm) 317. ACH outside 1.1. ACH merv filter return air 1.2. ACH total 2.3. ACH Copy paste check (uses total or outside) 1.1.

Room 216. % Outside air 71. Calculated air volume (cfm) outside 157. Calculated air volume (cfm) return 65. Combined air volume (cfm) 222. ACH outside 1.1. ACH merv filter return air 0.5. ACH total 1.6. ACH Copy paste check (uses total or outside) 1.1.

Room 211. % Outside air 75. Calculated air volume (cfm) outside 356. Calculated air volume (cfm) return 120. Combined air volume (cfm) 476. ACH outside 2.6. ACH merv filter return air 0.9. ACH total 3.5. ACH Copy paste check (uses total or outside) 2.6.

Room 213. % Outside air 83. Calculated air volume (cfm) outside 317. Calculated air volume (cfm) return 67. Combined air volume (cfm) 384. ACH outside 2.3. ACH merv filter return air 0.5. ACH total 2.8. ACH Copy paste check (uses total or outside) 2.3.

Room 103. % Outside air 50. Calculated air volume (cfm) outside 222. Calculated air volume (cfm) return 220. Combined air volume (cfm) 442. ACH outside 1.7. ACH merv filter return air 1.6. ACH total 3.3. ACH Copy paste check (uses total or outside) 1.7.

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.