Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Fenway HS
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: 6.2 Max ACH: 16.9 Avg ACH: 9.7 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: 1146.5 cuft: 11465 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 131. ACH Copy paste check (uses total or outside) 6.2. Window opening length (inches) 47. Window opening height (inches) 4. Co2 ambient (ppm) 415. Co2 test start (ppm) 2180. Co2 test end (ppm) 1362. Run time (min:sec) 6:00. Window air velocity max 839. Window air velocity min 260. Window air velocity avg 639. Window outside air volume (cfm) avg 834. Window cu-ft 1.31. Window cfm max 1095. Window cfm min 339. Window cfm avg 834. wACH max 6.3. wACH min 2.0. wACH avg 4.8. wACH Copy paste check (does not match calcultated) 6.2.

Room 211. ACH Copy paste check (uses total or outside) 16.9. Window opening length (inches) 47. Window opening height (inches) 4. Co2 ambient (ppm) 538. Co2 test start (ppm) 1822. Co2 test end (ppm) 1090. Run time (min:sec) 3:00. Window air velocity max 719. Window air velocity min 451. Window air velocity avg 653. Window outside air volume (cfm) avg 853. Window cu-ft 1.31. Window cfm max 939. Window cfm min 589. Window cfm avg 853. wACH max 12.9. wACH min 8.1. wACH avg 11.7. wACH Copy paste check (does not match calcultated) 16.9.

Room 218. ACH Copy paste check (uses total or outside) 12.6. Window opening length (inches) 47. Window opening height (inches) 4. Co2 ambient (ppm) 538. Co2 test start (ppm) 2069. Co2 test end (ppm) 1075. Run time (min:sec) 5:00. Window air velocity max 818. Window air velocity min 349. Window air velocity avg 696. Window outside air volume (cfm) avg 909. Window cu-ft 1.31. Window cfm max 1068. Window cfm min 456. Window cfm avg 909. wACH max 7.3. wACH min 3.1. wACH avg 6.2. wACH Copy paste check (does not match calcultated) 12.6.

Room 303. ACH Copy paste check (uses total or outside) 6.6. Window opening length (inches) 47. Window opening height (inches) 4. Co2 ambient (ppm) 420. Co2 test start (ppm) 2089. Co2 test end (ppm) 1280. Run time (min:sec) 6:00. Window air velocity max 785. Window air velocity min 278. Window air velocity avg 359. Window outside air volume (cfm) avg 469. Window cu-ft 1.31. Window cfm max 1025. Window cfm min 363. Window cfm avg 469. wACH max 5.8. wACH min 2.0. wACH avg 2.6. wACH Copy paste check (does not match calcultated) 6.6.

Room 321. ACH Copy paste check (uses total or outside) 8.3. Window opening length (inches) 47. Window opening height (inches) 4. Co2 ambient (ppm) 420. Co2 test start (ppm) 2135. Co2 test end (ppm) 1274. Run time (min:sec) 5:00. Window air velocity max 550. Window air velocity min 176. Window air velocity avg 453. Window outside air volume (cfm) avg 591. Window cu-ft 1.31. Window cfm max 718. Window cfm min 230. Window cfm avg 591. wACH max 4.1. wACH min 1.3. wACH avg 3.4. wACH Copy paste check (does not match calcultated) 8.3.

Room 17. ACH Copy paste check (uses total or outside) 6.9. Window opening length (inches) 49. Window opening height (inches) 4. Co2 ambient (ppm) 437. Co2 test start (ppm) 1815. Co2 test end (ppm) 1127. Run time (min:sec) 6:00. Window air velocity max 633. Window air velocity min 306. Window air velocity avg 499. Window outside air volume (cfm) avg 679. Window cu-ft 1.36. Window cfm max 862. Window cfm min 417. Window cfm avg 679. wACH max 4.5. wACH min 2.2. wACH avg 3.6. wACH Copy paste check (does not match calcultated) 6.9.

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.