Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Manning Jospeh P 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: 4.6 Max ACH: 15.7 Avg ACH: 10.7 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: 939.4 cuft: 9394 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 109. ACH Copy paste check (uses total or outside) 15.7. Window opening length (inches) 48. Window opening height (inches) 4. Co2 ambient (ppm) 439. Co2 test start (ppm) 1983. Co2 test end (ppm) 1144. Run time (min:sec) 3:00. Window air velocity max 747. Window air velocity min 307. Window air velocity avg 442. Window outside air volume (cfm) avg 589. Window cu-ft 1.33. Window cfm max 996. Window cfm min 409. Window cfm avg 589. wACH max 14.5. wACH min 5.9. wACH avg 8.6. wACH Copy paste check (does not match calcultated) 15.7.

Room 205. ACH Copy paste check (uses total or outside) 4.6. Window opening length (inches) 47. Window opening height (inches) 4. Co2 ambient (ppm) 400. Co2 test start (ppm) 2100. Co2 test end (ppm) 1315. Run time (min:sec) 8:00. Window air velocity max 247. Window air velocity min 11. Window air velocity avg 77. Window outside air volume (cfm) avg 101. Window cu-ft 1.31. Window cfm max 322. Window cfm min 14. Window cfm avg 101. wACH max 3.4. wACH min 0.2. wACH avg 1.1. wACH Copy paste check (does not match calcultated) 4.6.

Room 204. ACH Copy paste check (uses total or outside) 13. Window opening length (inches) 35. Window opening height (inches) 4. Co2 ambient (ppm) 400. Co2 test start (ppm) 2200. Co2 test end (ppm) 1344. Run time (min:sec) 3:00. Window air velocity max 501. Window air velocity min 11. Window air velocity avg 122. Window outside air volume (cfm) avg 119. Window cu-ft 0.97. Window cfm max 487. Window cfm min 11. Window cfm avg 119. wACH max 11.6. wACH min 0.3. wACH avg 2.8. wACH Copy paste check (does not match calcultated) 13.

Room 208. ACH Copy paste check (uses total or outside) 4.7. Window opening length (inches) 44. Window opening height (inches) 4. Co2 ambient (ppm) 419. Co2 test start (ppm) 2011. Co2 test end (ppm) 1207. Run time (min:sec) 9:00. Window air velocity max 320. Window air velocity min 29. Window air velocity avg 134. Window outside air volume (cfm) avg 164. Window cu-ft 1.22. Window cfm max 391. Window cfm min 35. Window cfm avg 164. wACH max 3.0. wACH min 0.3. wACH avg 1.2. wACH Copy paste check (does not match calcultated) 4.7.

Room 706. ACH Copy paste check (uses total or outside) 12.2. Window opening length (inches) 48. Window opening height (inches) 4. Co2 ambient (ppm) 419. Co2 test start (ppm) 3700. Co2 test end (ppm) 2199. Run time (min:sec) 3:00. Window air velocity max 231. Window air velocity min 57. Window air velocity avg 231. Window outside air volume (cfm) avg 308. Window cu-ft 1.33. Window cfm max 308. Window cfm min 76. Window cfm avg 308. wACH max 7.4. wACH min 1.8. wACH avg 7.4. wACH Copy paste check (does not match calcultated) 12.2.

Room 104. ACH Copy paste check (uses total or outside) 6.5. Window opening length (inches) 48. Window opening height (inches) 4. Co2 ambient (ppm) 413. Co2 test start (ppm) 1950. Co2 test end (ppm) 1131. Run time (min:sec) 7:00. Window air velocity max 335. Window air velocity min 79. Window air velocity avg 154. Window outside air volume (cfm) avg 205. Window cu-ft 1.33. Window cfm max 447. Window cfm min 105. Window cfm avg 205. wACH max 2.9. wACH min 0.7. wACH avg 1.3. wACH Copy paste check (does not match calcultated) 6.5.

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.