Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Community Academy
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: 2 Max ACH: 9.2 Avg ACH: 6.5 eACH: 0
Filter MERV:
Percent Outside Air: 100
ON and Ventilates Entire Indoor Area: Yes
Vent Clearance min 6 ft: Yes
No of Rooms: 10 sqft: 855.4 cuft: 8554 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 104. ACH Copy paste check (uses total or outside) 7. Window opening length (inches) 39. Window opening height (inches) 2. Co2 ambient (ppm) 446. Co2 test start (ppm) 2083. Co2 test end (ppm) 1200. Run time (min:sec) 6:52. Window air velocity max 594. Window air velocity min 508. Window air velocity avg 537. Window outside air volume (cfm) avg 291. Window cu-ft 0.54. Window cfm max 322. Window cfm min 275. Window cfm avg 291. wACH max 2.0. wACH min 1.7. wACH avg 1.8. wACH Copy paste check (does not match calcultated) 7.

Room 103. ACH Copy paste check (uses total or outside) 8.9. Window opening length (inches) 47. Window opening height (inches) 4. Co2 ambient (ppm) 446. Co2 test start (ppm) 1840. Co2 test end (ppm) 1070. Run time (min:sec) 5:25. Window air velocity max 650. Window air velocity min 334. Window air velocity avg 596. Window outside air volume (cfm) avg 778. Window cu-ft 1.31. Window cfm max 849. Window cfm min 436. Window cfm avg 778. wACH max 5.9. wACH min 3.0. wACH avg 5.4. wACH Copy paste check (does not match calcultated) 8.9.

Room 103. ACH Copy paste check (uses total or outside) 8.1. Window opening length (inches) 47. Window opening height (inches) 2. Co2 ambient (ppm) 446. Co2 test start (ppm) 2201. Co2 test end (ppm) 1280. Run time (min:sec) 5:30. Window air velocity max 409. Window air velocity min 123. Window air velocity avg 550. Window outside air volume (cfm) avg 359. Window cu-ft 0.65. Window cfm max 267. Window cfm min 80. Window cfm avg 359. wACH max 1.8. wACH min 0.6. wACH avg 2.5. wACH Copy paste check (does not match calcultated) 8.1.

Room 101. ACH Copy paste check (uses total or outside) 7.6. Window opening length (inches) 39. Window opening height (inches) 4. Co2 ambient (ppm) 411. Co2 test start (ppm) 2128. Co2 test end (ppm) 1214. Run time (min:sec) 5:43. Window air velocity max 672. Window air velocity min 564. Window air velocity avg 599. Window outside air volume (cfm) avg 649. Window cu-ft 1.08. Window cfm max 728. Window cfm min 611. Window cfm avg 649. wACH max 4.2. wACH min 3.5. wACH avg 3.7. wACH Copy paste check (does not match calcultated) 7.6.

Room 101. ACH Copy paste check (uses total or outside) 7.4. Window opening length (inches) 39. Window opening height (inches) 2. Co2 ambient (ppm) 411. Co2 test start (ppm) 2085. Co2 test end (ppm) 1211. Run time (min:sec) 6:13. Window air velocity max 409. Window air velocity min 123. Window air velocity avg 289. Window outside air volume (cfm) avg 157. Window cu-ft 0.54. Window cfm max 222. Window cfm min 67. Window cfm avg 157. wACH max 1.3. wACH min 0.4. wACH avg 0.9. wACH Copy paste check (does not match calcultated) 7.4.

Room 210. ACH Copy paste check (uses total or outside) 2. Window opening length (inches) 47. Window opening height (inches) 4. Co2 ambient (ppm) 411. Co2 test start (ppm) 1891. Co2 test end (ppm) 1013. Run time (min:sec) 27:00:00. Window air velocity max 282. Window air velocity min 171. Window air velocity avg 232. Window outside air volume (cfm) avg 303. Window cu-ft 1.31. Window cfm max 368. Window cfm min 223. Window cfm avg 303. wACH max 2.4. wACH min 1.5. wACH avg 2.0. wACH Copy paste check (does not match calcultated) 2.

Room 210. ACH Copy paste check (uses total or outside) 2. Window opening length (inches) 47. Window opening height (inches) 2. Co2 ambient (ppm) 411. Co2 test start (ppm) 2040. Co2 test end (ppm) 1253. Run time (min:sec) 20:00. Window air velocity max 446. Window air velocity min 183. Window air velocity avg 237. Window outside air volume (cfm) avg 155. Window cu-ft 0.65. Window cfm max 291. Window cfm min 119. Window cfm avg 155. wACH max 1.9. wACH min 0.8. wACH avg 1.0. wACH Copy paste check (does not match calcultated) 2.

Room 207. ACH Copy paste check (uses total or outside) 4.8. Window opening length (inches) 39. Window opening height (inches) 4. Co2 ambient (ppm) 411. Co2 test start (ppm) 2210. Co2 test end (ppm) 1098. Run time (min:sec) 12:00. Window air velocity max 314. Window air velocity min 125. Window air velocity avg 250. Window outside air volume (cfm) avg 271. Window cu-ft 1.08. Window cfm max 340. Window cfm min 135. Window cfm avg 271. wACH max 2.1. wACH min 0.8. wACH avg 1.7. wACH Copy paste check (does not match calcultated) 4.8.

Room 206. ACH Copy paste check (uses total or outside) 9.2. Window opening length (inches) 39. Window opening height (inches) 4. Co2 ambient (ppm) 411. Co2 test start (ppm) 2087. Co2 test end (ppm) 919. Run time (min:sec) 8:00. Window air velocity max 330. Window air velocity min 92. Window air velocity avg 251. Window outside air volume (cfm) avg 272. Window cu-ft 1.08. Window cfm max 358. Window cfm min 100. Window cfm avg 272. wACH max 2.3. wACH min 0.6. wACH avg 1.7. wACH Copy paste check (does not match calcultated) 9.2.

Room 1. ACH Copy paste check (uses total or outside) 6.5. Window opening length (inches) 70. Window opening height (inches) 4. Co2 ambient (ppm) 435. Co2 test start (ppm) 2120. Co2 test end (ppm) 1315. Run time (min:sec) 6:00. Window air velocity max 229. Window air velocity min 144. Window air velocity avg 206. Window outside air volume (cfm) avg 401. Window cu-ft 1.94. Window cfm max 445. Window cfm min 280. Window cfm avg 401. wACH max 3.1. wACH min 2.0. wACH avg 2.8. 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.