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Building Data Report

0. Space Type	BOS-School
1. Establishment Name	Boston Green Academy
2. Address	address
3. City	Boston
4. State / Province	MA
5. Country	USA
6. Date	03/21/2021
7. Data Source	School District
8. Performed by	External Company
9. Company Name Address Contact	Cashins & Associates, Inc. 599 North Ave #8, Wakefield, MA 01880
10. Requirement Source	Boston School 3 ACH guideline
11. Technology	Natural Ventilation Windows and Limited Univent HVAC
12. Min ACH	1.3
13. Max ACH	4.4
14. Avg ACH	2.6
15. eACH	0
16. Filter MERV
17. Percent Outside Air	73
18. ON and Ventilates Entire Indoor Area	Yes
19. Vent Clearance min 6 ft	Yes
20. No of Rooms	4
21. sqft	856.3
22. cuft	8563
23. No of Buildings	1
24. 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 115. % Outside air 100. Calculated air volume (cfm) outside 195. Calculated air volume (cfm) return 0. Combined air volume (cfm) 195. ACH outside 1.3. ACH merv filter return air 0.0. ACH total 1.3. ACH Copy paste check (uses total or outside) 1.3. Room 215. % Outside air 60. Calculated air volume (cfm) outside 395. Calculated air volume (cfm) return 265. Combined air volume (cfm) 660. ACH outside 2.6. ACH merv filter return air 1.8. ACH total 4.4. ACH Copy paste check (uses total or outside) 2.6. Room 213. % Outside air 60. Calculated air volume (cfm) outside 240. Calculated air volume (cfm) return 160. Combined air volume (cfm) 400. ACH outside 1.6. ACH merv filter return air 1.1. ACH total 2.7. ACH Copy paste check (uses total or outside) 1.6. Room 204. % Outside air 51. Calculated air volume (cfm) outside 205. Calculated air volume (cfm) return 155. Combined air volume (cfm) 360. ACH outside 1.4. ACH merv filter return air 1.1. ACH total 2.5. ACH Copy paste check (uses total or outside) 1.4.

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