Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Alighieri Dante Mont
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: 2.8 Max ACH: 6.5 Avg ACH: 5.1 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: 861.6 cuft: 8616 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 102. ACH Copy paste check (uses total or outside) 6.5. Window opening length (inches) 38. Window opening height (inches) 4. Co2 ambient (ppm) 400. Co2 test start (ppm) 2170. Co2 test end (ppm) 1328. Run time (min:sec) 6:00. Window air velocity max 837. Window air velocity min 253. Window air velocity avg 549. Window outside air volume (cfm) avg 580. Window cu-ft 1.06. Window cfm max 884. Window cfm min 267. Window cfm avg 580. wACH max 5.6. wACH min 1.7. wACH avg 3.7. wACH Copy paste check (does not match calcultated) 6.5.

Room 101. ACH Copy paste check (uses total or outside) 2.8. Window opening length (inches) 45. Window opening height (inches) 4. Co2 ambient (ppm) 419. Co2 test start (ppm) 2340. Co2 test end (ppm) 1561. Run time (min:sec) 11:00. Window air velocity max 430. Window air velocity min 62. Window air velocity avg 252. Window outside air volume (cfm) avg 315. Window cu-ft 1.25. Window cfm max 538. Window cfm min 78. Window cfm avg 315. wACH max 3.7. wACH min 0.5. wACH avg 2.1. wACH Copy paste check (does not match calcultated) 2.8.

Room 202. ACH Copy paste check (uses total or outside) 3.6. Window opening length (inches) 45. Window opening height (inches) 4. Co2 ambient (ppm) 419. Co2 test start (ppm) 2239. Co2 test end (ppm) 1479. Run time (min:sec) 9:00. Window air velocity max 869. Window air velocity min 113. Window air velocity avg 364. Window outside air volume (cfm) avg 455. Window cu-ft 1.25. Window cfm max 1086. Window cfm min 141. Window cfm avg 455. wACH max 8.2. wACH min 1.1. wACH avg 3.4. wACH Copy paste check (does not match calcultated) 3.6.

Room 203. ACH Copy paste check (uses total or outside) 5.4. Window opening length (inches) 45. Window opening height (inches) 4. Co2 ambient (ppm) 396. Co2 test start (ppm) 2498. Co2 test end (ppm) 1520. Run time (min:sec) 7:00. Window air velocity max 662. Window air velocity min 99. Window air velocity avg 244. Window outside air volume (cfm) avg 305. Window cu-ft 1.25. Window cfm max 828. Window cfm min 124. Window cfm avg 305. wACH max 6.6. wACH min 1.0. wACH avg 2.5. wACH Copy paste check (does not match calcultated) 5.4.

Room 204. ACH Copy paste check (uses total or outside) 6.3. Window opening length (inches) 45. Window opening height (inches) 4. Co2 ambient (ppm) 396. Co2 test start (ppm) 2073. Co2 test end (ppm) 1118. Run time (min:sec) 8:00. Window air velocity max 957. Window air velocity min 147. Window air velocity avg 441. Window outside air volume (cfm) avg 551. Window cu-ft 1.25. Window cfm max 1196. Window cfm min 184. Window cfm avg 551. wACH max 9.0. wACH min 1.4. wACH avg 4.1. wACH Copy paste check (does not match calcultated) 6.3.

Room 101. ACH Copy paste check (uses total or outside) 4.2. Window opening length (inches) 56. Window opening height (inches) 4. Co2 ambient (ppm) 405. Co2 test start (ppm) 2210. Co2 test end (ppm) 1370. Run time (min:sec) 9:00. Window air velocity max 44. Window air velocity min 5. Window air velocity avg 20. Window outside air volume (cfm) avg 31. Window cu-ft 1.56. Window cfm max 68. Window cfm min 8. Window cfm avg 31. wACH max 0.5. wACH min 0.1. wACH avg 0.2. wACH Copy paste check (does not match calcultated) 4.2.

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.