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Building Data Report

0. Space Type	BOS-School
1. Establishment Name	Mary Lyon K 8 Lower
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 HVAC
12. Min ACH	2.6
13. Max ACH	7
14. Avg ACH	5.1
15. eACH	0
16. Filter MERV	---
17. Percent Outside Air	100
18. ON and Ventilates Entire Indoor Area	Yes
19. Vent Clearance min 6 ft	Yes
20. No of Rooms	6
21. sqft	1123.2
22. cuft	11232
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 109. Diffuser air volume (cfm) 355. % Outside air 100. Calculated air volume (cfm) outside 355. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 355. ACH outside 6.7. ACH merv filter return air 0.0. ACH total 6.7. ACH Copy paste check (uses total or outside) 6.7. Room 203. Diffuser air volume (cfm) 545. % Outside air 100. Calculated air volume (cfm) outside 545. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 545. ACH outside 5.8. ACH merv filter return air 0.0. ACH total 5.8. ACH Copy paste check (uses total or outside) 5.8. Room 205. Diffuser air volume (cfm) 330. % Outside air 100. Calculated air volume (cfm) outside 330. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 330. ACH outside 3.5. ACH merv filter return air 0.0. ACH total 3.5. ACH Copy paste check (uses total or outside) 3.5. Room 207. Diffuser air volume (cfm) 650. % Outside air 100. Calculated air volume (cfm) outside 650. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 650. ACH outside 7.0. ACH merv filter return air 0.0. ACH total 7.0. ACH Copy paste check (uses total or outside) 7. Room 208. Diffuser air volume (cfm) 510. % Outside air 100. Calculated air volume (cfm) outside 510. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 510. ACH outside 5.5. ACH merv filter return air 0.0. ACH total 5.5. ACH Copy paste check (uses total or outside) 5.5. Room 206. Diffuser air volume (cfm) 442. % Outside air 100. Calculated air volume (cfm) outside 442. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 442. ACH outside 2.4. ACH merv filter return air 0.0. ACH total 2.4. ACH Copy paste check (uses total or outside) 2.4.

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