Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Thomas Edison 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: 4.5 Max ACH: 6.3 Avg ACH: 5 eACH: 0
Filter MERV:
Percent Outside Air: 80.8
ON and Ventilates Entire Indoor Area: Yes
Vent Clearance min 6 ft: Yes
No of Rooms: 6 sqft: 871.2 cuft: 8712 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 117. % Outside air 77. Calculated air volume (cfm) outside 985. Calculated air volume (cfm) return 295. Combined air volume (cfm) 1280. ACH outside 4.1. ACH merv filter return air 1.2. ACH total 5.3. ACH Copy paste check (uses total or outside) 4.1.

Room 223. % Outside air 79. Calculated air volume (cfm) outside 485. Calculated air volume (cfm) return 130. Combined air volume (cfm) 615. ACH outside 3.7. ACH merv filter return air 1.0. ACH total 4.7. ACH Copy paste check (uses total or outside) 3.7.

Room 212. % Outside air 89. Calculated air volume (cfm) outside 575. Calculated air volume (cfm) return 70. Combined air volume (cfm) 645. ACH outside 4.4. ACH merv filter return air 0.5. ACH total 4.9. ACH Copy paste check (uses total or outside) 4.4.

Room 311. % Outside air 86. Calculated air volume (cfm) outside 510. Calculated air volume (cfm) return 80. Combined air volume (cfm) 590. ACH outside 3.9. ACH merv filter return air 0.6. ACH total 4.5. ACH Copy paste check (uses total or outside) 3.9.

Room 316. % Outside air 88. Calculated air volume (cfm) outside 730. Calculated air volume (cfm) return 95. Combined air volume (cfm) 825. ACH outside 5.6. ACH merv filter return air 0.7. ACH total 6.3. ACH Copy paste check (uses total or outside) 5.6.

Room 101. % Outside air 52. Calculated air volume (cfm) outside 220. Calculated air volume (cfm) return 200. Combined air volume (cfm) 420. ACH outside 1.5. ACH merv filter return air 1.4. ACH total 2.9. ACH Copy paste check (uses total or outside) 1.5.

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.