Commercial, Hospital & Lab Ventilation in Fontana

Engineered Ventilation for Commercial, Hospital, and Lab Facilities in Fontana

Healthy air protects people, productivity, and outcomes. #1 AC Guys brings 80+ years of engineering know-how to mission-critical ventilation across Fontana and nearby areas. We combine rigorous design with hands-on field expertise to deliver systems that are safe, efficient, and compliant—without disrupting your operations.

What We Deliver

• Design-build ventilation for hospitals, outpatient centers, pharmacies, labs, cleanrooms, data rooms, and commercial spaces
• Isolation rooms with validated negative/positive pressure cascades and anteroom controls
• HEPA/ULPA filtration, MERV 13+ upgrades, and air change strategies for infection control and lab safety
• Cleanroom and lab ventilation: laminar flow, fume hood and specialty exhaust, make-up air, spill purge
• DOAS and ERV systems for high ventilation loads with energy recovery and dehumidification
• Advanced DDC/BMS integration, alarms, airflow monitoring, and IAQ sensors (PM, VOC, CO2)
• Retrofits, expansions, and lifecycle upgrades with minimal downtime
• Testing, adjusting, and balancing (TAB), functional performance testing, and detailed commissioning reports
• Preventive maintenance programs and rapid-response service to protect uptime

Standards, Codes, and Best Practices

Our designs and field work are guided by leading standards and California requirements. We help you align with ASHRAE 62.1 for commercial ventilation, ASHRAE 170 for healthcare, the California Mechanical Code, and Title 24 energy standards. Where applicable, we consider CDC guidance for healthcare spaces and NIH/industry best practices for labs, as well as NFPA requirements related to health care and laboratory environments. Our team documents airflow, pressure differentials, filtration, and control sequences, so you can demonstrate compliance with confidence.

Technical Capabilities for Critical Environments

• Pressure management: room-level setpoints, cascading strategies, and tight tolerance control
• Filtration solutions: MERV upgrades, HEPA/ULPA arrays, terminal HEPA modules, and housings
• Air distribution: laminar diffusers, displacement, low-turbulence delivery, and high-ACH zones
• Exhaust and makeup air: fume hoods, chemical/biological exhaust, redundancy, and heat recovery
• Controls: sequence of operations, BMS integration, alarming, trending, and remote visibility
• Energy optimization: ERV wheels/plates, DOAS decoupling, demand-control ventilation, and heat recovery
• Commissioning: calibrated instruments, pressure mapping, particulate/IAQ trending, and as-built documentation

Training and Heritage That Reduce Your Risk

We are a 4th-generation family of engineers with 80+ years in engineering. Our technicians and engineers are factory-trained at Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). This combination of deep engineering lineage and manufacturer training helps us solve complex ventilation challenges in hospitals, labs, and demanding commercial environments—on time and on spec.

Our Process

• Assessment and Planning: on-site survey, risk analysis, and ventilation objectives aligned to your clinical or operational needs
• Engineering and Modeling: load calcs, air change strategies, pressure zoning, and energy modeling
• Build and Integrate: clean installation, phasing to reduce downtime, and controls integration with your BMS
• Commission and Verify: TAB, pressure validation, filtration integrity checks, and acceptance testing
• Maintain and Improve: scheduled maintenance, IAQ monitoring, and continuous optimization

Who We Serve in and around Fontana

• Hospitals, outpatient clinics, pharmacies, imaging centers, and ASC facilities
• University, biotech, R&D, and clinical labs
• Manufacturing, clean assembly, and high-tech commercial spaces
• Office, education, retail, and mixed-use buildings with elevated ventilation needs

#1 AC Guys serves clients in Fontana and nearby Greater Los Angeles communities, including Orange County, Ventura County, and Western Riverside County. Ask us about scheduling, phasing, and weekend work to keep your operations running.

Results You Can Measure

We deliver clear commissioning documents, pressure and airflow logs, IAQ baselines, and training for your facilities team. You get traceable performance, predictable maintenance, and ventilation that supports safety, compliance, and occupant well-being.

Get a Ventilation Assessment

Need a new system, a retrofit, or help resolving a persistent pressure or IAQ issue in Fontana? Contact #1 AC Guys for a site assessment and proposal. Our mission is healthy air for a healthy life—and we are ready to engineer the right solution for your facility.