Clean Air Building Certificate

Space Type: BOS-School
Establishment Name: Umana Mario 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: Central HVAC
Min ACH: 5.8 Max ACH: 10 Avg ACH: 7.8 eACH: 0
Filter MERV: ---
Percent Outside Air: 69.8
ON and Ventilates Entire Indoor Area: Yes
Vent Clearance min 6 ft: Yes
No of Rooms: 6 sqft: 1036.8 cuft: 10368 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 150. Diffuser air volume (cfm) 1118. % Outside air 70. Calculated air volume (cfm) outside 783. Calculated air volume (cfm) return 335. Filter merv rating 85. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 1068. ACH outside 6.3. ACH merv filter return air 2.3. ACH total 8.6.

Room 227. Diffuser air volume (cfm) 793. % Outside air 70. Calculated air volume (cfm) outside 555. Calculated air volume (cfm) return 238. Filter merv rating 85. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 757. ACH outside 4.9. ACH merv filter return air 1.8. ACH total 6.7.

Room 260. Diffuser air volume (cfm) 639. % Outside air 70. Calculated air volume (cfm) outside 447. Calculated air volume (cfm) return 192. Filter merv rating 85. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 610. ACH outside 4.3. ACH merv filter return air 1.5. ACH total 5.8.

Room 324. Diffuser air volume (cfm) 1258. % Outside air 70. Calculated air volume (cfm) outside 881. Calculated air volume (cfm) return 337. Filter merv rating 85. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 1167. ACH outside 7.2. ACH merv filter return air 2.3. ACH total 9.5.

Room 331. Diffuser air volume (cfm) 1194. % Outside air 70. Calculated air volume (cfm) outside 836. Calculated air volume (cfm) return 358. Filter merv rating 85. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 1140. ACH outside 7.3. ACH merv filter return air 2.7. ACH total 10.

Room A104. Diffuser air volume (cfm) 410. % Outside air 100. Calculated air volume (cfm) outside 410. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 410. 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.