Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Winship F Lyman Elementary
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:
Min ACH: 2.4 Max ACH: 2.9 Avg ACH: 2.5 eACH: 0
Filter MERV:
Percent Outside Air: 100
ON and Ventilates Entire Indoor Area: Yes
Vent Clearance min 6 ft: Yes
No of Rooms: 6 sqft: 0 cuft: CLASSROOM VOLUME (FT3) 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 106. Diffuser air volume (cfm) 595. % Outside air 100. Calculated air volume (cfm) outside 595. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 595. ACH outside 2.9. ACH merv filter return air 0.0. ACH total 2.9. ACH Copy paste check (uses total or outside) 2.9.

Room 207. Diffuser air volume (cfm) 520. % Outside air 100. Calculated air volume (cfm) outside 520. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 520. ACH outside 2.5. ACH merv filter return air 0.0. ACH total 2.5. ACH Copy paste check (uses total or outside) 2.5.

Room 209. Diffuser air volume (cfm) 490. % Outside air 100. Calculated air volume (cfm) outside 490. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 490. ACH outside 2.4. ACH merv filter return air 0.0. ACH total 2.4. ACH Copy paste check (uses total or outside) 2.4.

Room 210. Diffuser air volume (cfm) 580. % Outside air 100. Calculated air volume (cfm) outside 580. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 580. ACH outside 2.8. ACH merv filter return air 0.0. ACH total 2.8. ACH Copy paste check (uses total or outside) 2.8.

Room 212. Diffuser air volume (cfm) 495. % Outside air 100. Calculated air volume (cfm) outside 495. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 495. ACH outside 2.4. ACH merv filter return air 0.0. ACH total 2.4. ACH Copy paste check (uses total or outside) 2.4.

Room ROOM. % Outside air % OUTSIDE AIR . Calculated air volume (cfm) outside OUTSIDE AIR (CFM). Calculated air volume (cfm) return RETURN AIR (CFM). Combined air volume (cfm) TOTAL AIR (CFM). ACH outside AIR CHANGES PER HOUR OUTSIDE. ACH merv filter return air AIR CHANGES PER HOUR MERV FILTER RETURN AIR. ACH total AIR CHANGES PER HOUR TOTAL. ACH Copy paste check (uses total or outside) copy paste check (uses outside).

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.