Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Adams Samuel Elem
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
Min ACH: 6.1 Max ACH: 8.2 Avg ACH: 7 eACH: 0
Filter MERV:
Percent Outside Air: 100
ON and Ventilates Entire Indoor Area: Yes
Vent Clearance min 6 ft: Yes
No of Rooms: 6 sqft: 867.8 cuft: 8678 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 8. ACH Copy paste check (uses total or outside) 6.1. Window opening length (inches) 31. Window opening height (inches) 4. Co2 ambient (ppm) 420. Co2 test start (ppm) 2240. Co2 test end (ppm) 1410. Run time (min:sec) 6:00. Window air velocity max 976. Window air velocity min 12. Window air velocity avg 549. Window outside air volume (cfm) avg 473. Window cu-ft 0.86. Window cfm max 840. Window cfm min 10. Window cfm avg 473. wACH max 6.3. wACH min 0.1. wACH avg 3.5. wACH Copy paste check (does not match calcultated) 6.1.

Room 6. ACH Copy paste check (uses total or outside) 7.5. Window opening length (inches) 31. Window opening height (inches) 4. Co2 ambient (ppm) 399. Co2 test start (ppm) 2367. Co2 test end (ppm) 1126. Run time (min:sec) 8:00. Window air velocity max 829. Window air velocity min 60. Window air velocity avg 459. Window outside air volume (cfm) avg 395. Window cu-ft 0.86. Window cfm max 714. Window cfm min 52. Window cfm avg 395. wACH max 4.9. wACH min 0.4. wACH avg 2.7. wACH Copy paste check (does not match calcultated) 7.5.

Room 14. ACH Copy paste check (uses total or outside) 7.4. Window opening length (inches) 31. Window opening height (inches) 4. Co2 ambient (ppm) 399. Co2 test start (ppm) 2008. Co2 test end (ppm) 1168. Run time (min:sec) 6:00. Window air velocity max 1417. Window air velocity min 60. Window air velocity avg 697. Window outside air volume (cfm) avg 600. Window cu-ft 0.86. Window cfm max 1220. Window cfm min 52. Window cfm avg 600. wACH max 8.4. wACH min 0.4. wACH avg 4.1. wACH Copy paste check (does not match calcultated) 7.4.

Room 22. ACH Copy paste check (uses total or outside) 6.8. Window opening length (inches) 31. Window opening height (inches) 4. Co2 ambient (ppm) 412. Co2 test start (ppm) 2000. Co2 test end (ppm) 1214. Run time (min:sec) 6:00. Window air velocity max 969. Window air velocity min 170. Window air velocity avg 440. Window outside air volume (cfm) avg 379. Window cu-ft 0.86. Window cfm max 834. Window cfm min 146. Window cfm avg 379. wACH max 6.0. wACH min 1.1. wACH avg 2.7. wACH Copy paste check (does not match calcultated) 6.8.

Room 20. ACH Copy paste check (uses total or outside) 6.1. Window opening length (inches) 31. Window opening height (inches) 4. Co2 ambient (ppm) 412. Co2 test start (ppm) 1991. Co2 test end (ppm) 1165. Run time (min:sec) 7:00. Window air velocity max 832. Window air velocity min 371. Window air velocity avg 599. Window outside air volume (cfm) avg 516. Window cu-ft 0.86. Window cfm max 716. Window cfm min 319. Window cfm avg 516. wACH max 4.8. wACH min 2.1. wACH avg 3.5. wACH Copy paste check (does not match calcultated) 6.1.

Room 103. ACH Copy paste check (uses total or outside) 6.3. Window opening length (inches) 38. Window opening height (inches) 4. Co2 ambient (ppm) 400. Co2 test start (ppm) 2160. Co2 test end (ppm) 1340. Run time (min:sec) 6:00. Window air velocity max 698. Window air velocity min 79. Window air velocity avg 389. Window outside air volume (cfm) avg 411. Window cu-ft 1.06. Window cfm max 737. Window cfm min 83. Window cfm avg 411. wACH max 5.1. wACH min 0.6. wACH avg 2.8. wACH Copy paste check (does not match calcultated) 6.3.

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.