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Nonprofit · EIN 47-1019190

AIR MATTERS

Tax-exempt (reinstated) · SPRING LAKE, MI 49456

Financials

$51K$62K2023$479K$478K2024$552K$559K2025
Revenue Expenses · by fiscal year end
Financials of AIR MATTERS by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$551,915$559,385-$7,470$155,627$122,310$33,317
December 31, 2024990$478,562$477,587$975$12,116$0$12,116
December 31, 2023990-EZ$51,160$61,899-$10,739$0$10,739-$10,739
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$493,921
of which government grants
$493,921
Program service revenue
$57,994
Investment income
$0
Other revenue
$0

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$250,114
Salaries, compensation and benefits (total)
$294,539
Professional fundraising fees
$0
Travel
$10,637
Program services (functional)
$559,385

Balance sheet and other

Total assets, start of year
$84,647
Total assets, end of year
$155,627
Total liabilities, end of year
$122,310
Net assets, end of year
$33,317
Net assets without donor restrictions
$33,314
Gross receipts
$551,915
Employees
0
Volunteers
0
Year formed
2025
State of legal domicile
MI

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended December 31, 2025, highest compensation first.

NameTitleHours / weekCompensation
Gillian MittelstaedtExecutive Director and Founder
Trustee or director, Officer, Key employee, Highest-paid employee
40$115,971
Kiernan KilkennyHealthy Homes Specialist
Key employee
40$96,695
Aileen GagneySenior Trainer
Key employee, Former
30$26,285
Christina RossOperations Manager
Trustee or director, Officer, Key employee
30$8,592
Denise FrakesTreasurer
Trustee or director, Officer
0$0
Jack TurleyBoard of Director Member
Trustee or director
0$0
Kelly ToyBoard of Directors Member
Trustee or director
0$0
990 for the year ended December 31, 2024: 3 people
NameTitleHours / weekCompensation
Dr Gillian MittelstaedtDirector
Highest-paid employee
50$135,362
Aileen GagneySenior Technical Advisor and Trainer
Key employee
30$76,973
Kiernan KilkennyHealthy Housing Trainer
Key employee
20$37,618
990-EZ for the year ended December 31, 2023: 4 people
NameTitleHours / weekCompensation
Gillian MittelstaedtDirector60$22,730
Aileen GagneyTechnical Advisor and Trainer30$16,053
Heather MoffatE-Learning Video Project Lead10$14,700
Krysta ThorntonAirMATTERS Program Coordinator4$1,582

Address and contacts

Address (IRS master file)
510 W SAVIDGE ST B303, SPRING LAKE, MI 49456-3107
Principal officer (990 for 2025)
Christina Ross, 16876 Birchview Dr, Nunica, MI 49448
Signed the 990
Christina Ross, Operations Manager
Phone
(206) 880-1310

Mission

Our mission is to equip families and communities with tools and knowledge to reduce exposure to indoor air pollution including wildfire smoke mold and other airborne toxins. We work nationally with Tribal Nations Alaska Native villages and underserved populations who face disproportionate environmental health risks.

990 for the year ended December 31, 2025

Program accomplishments

  • Funded by the EPA under the Tulalip Tribes and Philanthropy Northwest Air Matters THHN operates as a technical assistance hub and knowledge-sharing network. It offers training community-based research and culturally relevant interventions to improve housing conditions in Tribal and vulnerable population communities.
    Expenses $482,773
  • We offer two main toolkit programs: AirMatters Kits address general indoor air quality issues like mold dust and inadequate ventilation. SmokeMatters Kits provide protection from wildfire smoke and heavy particulate pollution. These kits are practical low-cost and user-friendly enabling families to promptly enhance their home air quality while broader remediation efforts progress.
    Expenses $76,612 · revenue $57,994
  • SmokeMatters Kits provide protection from wildfire smoke and heavy particulate pollution. Each year the EPA distributes and offers training to multiple tribes focusing on the most impacted communities. This initiative is part of our two primary categories but operates as a distinct annual effort with costs allocated within the main categories.0

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990 on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990-EZ on file

IRS record

EIN
47-1019190
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2023
Accounting year ends
December
Files
Form 990 or 990-EZ
Category (NTEE)
Environment (C20)
Assets (IRS master file)
$155,627
Income (IRS master file)
$551,915

Revocation and reinstatement

Exemption revoked
May 15, 2017
Posted by the IRS
August 16, 2017
Reinstated
Effective October 15, 2023

From the IRS automatic revocation list: organizations that did not file a required return or e-Postcard for three consecutive years.

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$551,915$559,385$155,627IRS
990December 2024$478,562$477,587$12,116IRS
990-EZDecember 2023$51,160$61,899$0XML

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 47-1019190).

Questions about AIR MATTERS

What is the EIN of AIR MATTERS?
The employer identification number (EIN) of AIR MATTERS is 47-1019190.
Is AIR MATTERS tax-exempt?
Yes. The IRS revoked its exemption on May 15, 2017 and reinstated it effective October 15, 2023.
Are donations to AIR MATTERS tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does AIR MATTERS file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of AIR MATTERS due?
The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did AIR MATTERS last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2025.
Who is the principal officer of AIR MATTERS?
The 990 for the year ended December 31, 2025 names Christina Ross.
Who are the officers and directors of AIR MATTERS?
The 990 for the year ended December 31, 2025 lists 7 people; 4 received compensation from the organization, the highest $115,971 (Gillian Mittelstaedt, Executive Director and Founder).
How much revenue does AIR MATTERS have?
On its 990 for the year ended December 31, 2025 it reported revenue of $551,915, expenses of $559,385 and total assets of $155,627 at year end.

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