Independent Industrial Hygiene Evaluations for Commercial, Institutional, Hospitality, and Residential Environments

Indoor air quality affects comfort, productivity, and the overall indoor environment. Hutzel & Associates conducts independent, non-destructive IAQ evaluations throughout Phoenix, the greater Arizona region, and the Southwest.

Our approach follows industrial hygiene principles and aligns with recognized guidelines from ASHRAE, EPA, and the American Conference of Governmental Industrial Hygienists (ACGIH).

Our IAQ methodology reflects the same proven field practices we have used in conducting indoor air quality surveys across Arizona and the United States since 1992, including direct‑reading measurements, moisture evaluation, and targeted bioaerosol sampling when appropriate.

 

What Our IAQ Assessments Include

IAQ Surveys

A typical IAQ survey incorporates professional-grade, real-time measurements such as:

• Carbon Monoxide (CO)
• Carbon Dioxide (CO₂)
• Temperature & Relative Humidity (RH)
• Volatile Organic Compounds (VOCs)
• Ultrafine particulates, where applicable
• Moisture evaluation using FLIR infrared imaging and moisture meters
• Indoor vs. outdoor baseline comparison, consistent with ACGIH interpretation methods

Mold Sampling (Performed When Necessary)

Hutzel & Associates conducts bioaerosol fungal spore sampling only when conditions indicate it may be helpful (e.g., water intrusion, elevated moisture, odors, or particulate concerns). Our sampling procedure includes:

• Air-O-Cell spore trap sampling using calibrated pumps
• Use of indoor and outdoor controls, per ACGIH’s indoor/outdoor comparison approach
• Laboratory analysis by Fiberquant, Inc., an AIHA-accredited laboratory
• Genus-level identification and spore counts (spores/m³)
• Interpretation grounded in the indoor vs. outdoor baseline, rather than arbitrary numeric limits

A separate “Mold Sampling & Analysis” Services page will provide additional detail.

Industries We Serve

Hutzel & Associates provides IAQ services for organizations throughout Phoenix, Arizona, and the Southwest, including:

• Corporate Offices & Administrative Facilities
• Hotels, Resorts & Hospitality
• Healthcare, Clinics & Assisted Living Centers
• Schools, Colleges & Educational Facilities
• Manufacturing & Light Industrial Facilities
• Commercial Property Managers & Multi‑Tenant Buildings
• Municipal, Government & Public Facilities

Residential IAQ (Moisture, Odor & Mold‑Related Concerns)

In addition to our commercial and industrial work, Hutzel & Associates provides residential IAQ evaluations when homeowners need a neutral, data‑driven assessment of possible moisture issues, odors, ventilation concerns, or suspected mold-related conditions.

Our residential process uses the same defensible methodology applied in our commercial evaluations:

• Direct‑reading measurements for CO, CO₂, temperature, RH, VOCs, and particulates
• Moisture assessment using FLIR infrared imaging and moisture meters (as demonstrated in the Cave Creek moisture findings)
• Bioaerosol spore sampling only when indicated, evaluated with indoor/outdoor comparison

We do not provide remediation or medical diagnosis.
Our role is to deliver clear, objective environmental data and written reports that are technically sound and legally defensible.

Our CIH, Robert L. Hutzel, also provides expert assistance for IAQ‑related legal reviews, documentation analysis, and expert witness testimony when required.

Common IAQ Issues We Evaluate

• Ventilation adequacy (CO₂ levels)
• Comfort conditions (temperature / humidity)
• VOCs and chemical odors from products, furnishings, or renovations
• Ultrafine particulates in office or industrial environments
• Moisture intrusion and humidity concerns
• Musty odors or occupant discomfort
• Post‑water intrusion IAQ confirmation

Our IAQ Survey Process

1. Initial Walkthrough & Background Review

We assess occupant concerns, review building history, and examine ventilation/HVAC conditions.

2. Direct-Reading Measurements

Using instruments such as the TSI Q-Trak, MiniRAE PID, and P-Trak (when applicable), we measure:

• CO, CO₂, RH, temperature
• VOCs
• Ultrafine particulates

3. Moisture Assessment

Infrared scanning and moisture meters identify active or residual water impacts.

4. Bioaerosol Sampling (If Necessary)

Indoor and outdoor Air-O-Cell samples analyzed by an AIHA-accredited laboratory.

5. Results & Recommendations

Findings are compared to ASHRAE, EPA, and ACGIH guidance to provide clear, practical, and defensible recommendations.

Why Choose Hutzel & Associates

• Industrial hygiene consulting experience since 1992
• Oversight by Certified Industrial Hygienist (CIH) Robert L. Hutzel
• Independent, third‑party evaluations (no remediation conflict)
• Experience with IAQ surveys across multiple industries
• Clear, neutral, data-based reporting
• Support for legally defensible documentation, case review, and expert testimony

Service Areas

We serve clients throughout:

• Phoenix
• Scottsdale
• Tempe
• Mesa
• Chandler
• Glendale
• Peoria
• Cave Creek & Carefree
• Greater Arizona & Southwest Region

Schedule an Indoor Air Quality Evaluation

To request an IAQ survey or speak with an industrial hygiene professional, call 602‑323‑0222 or visit the Contact Us page to send a message.