Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Higginson Lewis
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 Windows and Limited HVAC
Min ACH: 1.9 Max ACH: 3.4 Avg ACH: 2.6 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: 576 cuft: 5760 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 103. Diffuser air volume (cfm) 400. % Outside air 100. Calculated air volume (cfm) outside 400. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 400. ACH outside 3.0. ACH merv filter return air 0.0. ACH total 3.0. ACH Copy paste check (uses total or outside) 3.

Room 105. Diffuser air volume (cfm) 460. % Outside air 100. Calculated air volume (cfm) outside 460. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 460. ACH outside 3.4. ACH merv filter return air 0.0. ACH total 3.4. ACH Copy paste check (uses total or outside) 3.5.

Room 202. Diffuser air volume (cfm) 280. % Outside air 100. Calculated air volume (cfm) outside 280. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 280. ACH outside 2.0. ACH merv filter return air 0.0. ACH total 2.0. ACH Copy paste check (uses total or outside) 2.

Room 203. Diffuser air volume (cfm) 275. % Outside air 100. Calculated air volume (cfm) outside 275. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 275. ACH outside 2.1. ACH merv filter return air 0.0. ACH total 2.1. ACH Copy paste check (uses total or outside) 2.1.

Room 205. Diffuser air volume (cfm) 440. % Outside air 100. Calculated air volume (cfm) outside 440. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 440. ACH outside 3.3. ACH merv filter return air 0.0. ACH total 3.3. ACH Copy paste check (uses total or outside) 3.3.

Room 108. Diffuser air volume (cfm) 250. % Outside air 100. Calculated air volume (cfm) outside 250. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 250. ACH outside 2.6. ACH merv filter return air 0.0. ACH total 2.6. ACH Copy paste check (uses total or outside) 2.6.

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.