Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Gardner Pilot 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: 4.7 Max ACH: 8.1 Avg ACH: 6.3 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: 830.5 cuft: 8305 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 13. ACH Copy paste check (uses total or outside) 8.1. Window opening length (inches) 49. Window opening height (inches) 4. Co2 ambient (ppm) 437. Co2 test start (ppm) 2108. Co2 test end (ppm) 1285. Run time (min:sec) 5:00. Window air velocity max 783. Window air velocity min 575. Window air velocity avg 659. Window outside air volume (cfm) avg 897. Window cu-ft 1.36. Window cfm max 1066. Window cfm min 783. Window cfm avg 897. wACH max 5.8. wACH min 4.2. wACH avg 4.9. wACH Copy paste check (does not match calcultated) 8.1.

Room 28. ACH Copy paste check (uses total or outside) 4.7. Window opening length (inches) 48. Window opening height (inches) 4. Co2 ambient (ppm) 409. Co2 test start (ppm) 2158. Co2 test end (ppm) 1262. Run time (min:sec) 9:00. Window air velocity max 447. Window air velocity min 72. Window air velocity avg 272. Window outside air volume (cfm) avg 363. Window cu-ft 1.33. Window cfm max 596. Window cfm min 96. Window cfm avg 363. wACH max 3.7. wACH min 0.6. wACH avg 2.3. wACH Copy paste check (does not match calcultated) 4.7.

Room 21. ACH Copy paste check (uses total or outside) 7. Window opening length (inches) 48. Window opening height (inches) 4. Co2 ambient (ppm) 409. Co2 test start (ppm) 2261. Co2 test end (ppm) 1137. Run time (min:sec) 8:00. Window air velocity max 1196. Window air velocity min 504. Window air velocity avg 778. Window outside air volume (cfm) avg 1037. Window cu-ft 1.33. Window cfm max 1595. Window cfm min 672. Window cfm avg 1037. wACH max 8.9. wACH min 3.7. wACH avg 5.8. wACH Copy paste check (does not match calcultated) 7.

Room 31. ACH Copy paste check (uses total or outside) 6.6. Window opening length (inches) 49. Window opening height (inches) 4. Co2 ambient (ppm) 415. Co2 test start (ppm) 2100. Co2 test end (ppm) 1286. Run time (min:sec) 6:00. Window air velocity max 952. Window air velocity min 39. Window air velocity avg 319. Window outside air volume (cfm) avg 434. Window cu-ft 1.36. Window cfm max 1296. Window cfm min 53. Window cfm avg 434. wACH max 7.1. wACH min 0.3. wACH avg 2.4. wACH Copy paste check (does not match calcultated) 6.6.

Room 35. ACH Copy paste check (uses total or outside) 4.8. Window opening length (inches) 49. Window opening height (inches) 4. Co2 ambient (ppm) 415. Co2 test start (ppm) 2210. Co2 test end (ppm) 1400. Run time (min:sec) 10:00. Window air velocity max 417. Window air velocity min 3. Window air velocity avg 142. Window outside air volume (cfm) avg 193. Window cu-ft 1.36. Window cfm max 568. Window cfm min 4. Window cfm avg 193. wACH max 3.1. wACH min 0.0. wACH avg 1.1. wACH Copy paste check (does not match calcultated) 4.8.

Room 207. ACH Copy paste check (uses total or outside) 5.5. Window opening length (inches) 39. Window opening height (inches) 4. Co2 ambient (ppm) 370. Co2 test start (ppm) 2199. Co2 test end (ppm) 1334. Run time (min:sec) 7:00. Window air velocity max 457. Window air velocity min 88. Window air velocity avg 288. Window outside air volume (cfm) avg 312. Window cu-ft 1.08. Window cfm max 495. Window cfm min 95. Window cfm avg 312. wACH max 3.6. wACH min 0.7. wACH avg 2.3. wACH Copy paste check (does not match calcultated) 5.5.

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.