Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Harvard Kent 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: Univent Central HVAC
Min ACH: 7 Max ACH: 11.6 Avg ACH: 10.1 eACH: 0
Filter MERV:
Percent Outside Air: 78.5
ON and Ventilates Entire Indoor Area: Yes
Vent Clearance min 6 ft: Yes
No of Rooms: 6 sqft: 660 cuft: 6600 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 209. % Outside air 88. Calculated air volume (cfm) outside 800. Calculated air volume (cfm) return 105. Combined air volume (cfm) 905. ACH outside 10.3. ACH merv filter return air 1.3. ACH total 11.6. ACH Copy paste check (uses total or outside) 10.3.

Room 306. % Outside air 72. Calculated air volume (cfm) outside 885. Calculated air volume (cfm) return 350. Combined air volume (cfm) 1235. ACH outside 7.0. ACH merv filter return air 2.8. ACH total 9.8. ACH Copy paste check (uses total or outside) 7.

Room 302. % Outside air 77. Calculated air volume (cfm) outside 950. Calculated air volume (cfm) return 290. Combined air volume (cfm) 1240. ACH outside 8.1. ACH merv filter return air 2.5. ACH total 10.6. ACH Copy paste check (uses total or outside) 8.1.

Room 407. % Outside air 77. Calculated air volume (cfm) outside 950. Calculated air volume (cfm) return 290. Combined air volume (cfm) 1240. ACH outside 8.4. ACH merv filter return air 2.6. ACH total 10.9. ACH Copy paste check (uses total or outside) 8.4.

Room 403. % Outside air 78. Calculated air volume (cfm) outside 940. Calculated air volume (cfm) return 270. Combined air volume (cfm) 1210. ACH outside 8.3. ACH merv filter return air 2.4. ACH total 10.7. ACH Copy paste check (uses total or outside) 8.3.

Room 307. % Outside air 63. Calculated air volume (cfm) outside 450. Calculated air volume (cfm) return 260. Combined air volume (cfm) 710. ACH outside 4.1. ACH merv filter return air 2.4. ACH total 6.5. ACH Copy paste check (uses total or outside) 4.1.

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.