Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Mildred Avenue K 8
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: Central HVAC
Min ACH: 3.3 Max ACH: 5 Avg ACH: 3.9 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: 1000 cuft: 10000 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 B105. Diffuser air volume (cfm) 682. % Outside air 100. Calculated air volume (cfm) outside 682. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 682. ACH outside 3.4. ACH total 3.4.

Room B117. Diffuser air volume (cfm) 682. % Outside air 100. Calculated air volume (cfm) outside 682. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 682. ACH outside 3.6. ACH total 3.6.

Room B207. Diffuser air volume (cfm) 480. % Outside air 100. Calculated air volume (cfm) outside 480. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 480. ACH outside 3.3. ACH total 3.3.

Room B216. Diffuser air volume (cfm) 525. % Outside air 100. Calculated air volume (cfm) outside 525. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 525. ACH outside 3.6. ACH total 3.6.

Room B323. Diffuser air volume (cfm) 655. % Outside air 100. Calculated air volume (cfm) outside 655. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 655. ACH outside 4.5. ACH total 4.5.

Room 203. Diffuser air volume (cfm) 395. % Outside air 100. Calculated air volume (cfm) outside 395. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 395. ACH outside 2.4. ACH total 2.4.

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.