Commercial Hospital & Lab Ventilation in Pasadena

Why #1 AC Guys for Pasadena Healthcare and Lab Ventilation

As a fourth-generation, family-owned HVAC engineering firm with 80+ years of experience, #1 AC Guys specializes in complex commercial environments where air quality cannot fail. Our mission—healthy air for a healthy life—extends from homes to critical-care suites and high-containment laboratories. We combine deep field expertise with manufacturer training (Fujitsu, Mitsubishi Electric, Midea, Gree, Haier) to deliver resilient, efficient, and compliant systems tailored to Pasadena’s hospitals, clinics, and research campuses.

Compliance Built In: Healthcare and Lab Standards

We align every design and retrofit with the codes and standards your facility must meet, including ASHRAE 170 for healthcare ventilation, California Title 24 energy requirements, the California Mechanical Code, HCAI (formerly OSHPD) guidelines for hospital projects, and applicable NFPA and IBC provisions. For laboratories and pharmacies, we support USP 797/800 compounding requirements, NFPA 45 for lab ventilation, and best practices for BSL-1 to BSL-3 spaces. Our team coordinates with Pasadena plan check, HCAI reviewers, and South Coast AQMD when specialty exhaust permitting is needed.

Specialized Solutions We Deliver

- HEPA/ULPA filtration trains sized for targeted ISO cleanliness and high air-change rates (ACH).
- Negative- and positive-pressure room suites with stable differentials, alarmed monitoring, and rapid recovery.
- Isolation rooms (AIIR) and protective environment rooms with directional airflow control and anteroom design.
- Cleanrooms for research, device assembly, and pharmacy compounding with low-leak ductwork and sealed envelopes.
- Fume hood and biosafety cabinet (Class II A2/B2) exhaust systems with VAV controls, sash management, and safe capture velocities.
- Corrosion-resistant exhaust materials (FRP, PVC/CPVC) and spark-resistant fans for chemical processes.
- Energy recovery (ERV/HRV), demand-controlled ventilation, high-efficiency motors, and optimized fan arrays for Title 24 compliance.
- Redundancy (N+1) on critical fans and filtration stages to maintain operation during maintenance or failure events.
- BMS integration (BACnet/Modbus), room-pressure and IAQ sensors, and cloud-enabled analytics for 24/7 visibility.

Design-Build, Retrofit, and New Construction

Whether you are modernizing an existing wing at a Pasadena hospital, expanding a university lab, or building a new clinic, we provide full design-build delivery. Our engineers model airflows, pressure relationships, and thermal loads, then select equipment and controls that meet performance and energy targets. We coordinate closely with architects, GCs, and infection prevention teams to sequence work safely in active facilities and minimize downtime.

Commissioning, Validation, and TAB

Performance must be proven, not assumed. We provide testing, adjusting, and balancing (TAB); filter leak testing; pressure mapping; ACH verification; and integrated functional testing of alarms, controls, and redundancy. For regulated spaces, we support your validation and documentation packages so you can demonstrate compliance during inspections and audits.

Maintenance and 24/7 Support

Critical environments demand proactive care. Our preventive maintenance plans include calibrated sensor checks, filter lifecycle management, belt and bearing services, fan array diagnostics, and control strategy tuning to sustain pressure and ACH targets. Should an issue occur, our Pasadena-area rapid response team is available 24/7 to restore stability and protect patient care and research integrity.

Energy Efficiency Without Compromise

Ventilation is energy intensive. We deploy energy recovery, advanced fan control, optimized setback strategies for non-critical periods, and right-sized filtration to reduce operating cost while maintaining required cleanliness, pressure, and temperature/humidity ranges. Our designs help you achieve sustainability goals without compromising safety or uptime.

Service Area

Based in Greater Los Angeles, we serve Pasadena and surrounding communities across Los Angeles County, with extended coverage in Orange County, Ventura County, and Western Riverside County. If your project requires specialized hospital or laboratory ventilation anywhere in Southern California, our team is ready.

Get Started

Protect people and processes with ventilation engineered for healthcare and laboratories. Contact #1 AC Guys for a site assessment in Pasadena. We’ll evaluate your spaces, review code and accreditation targets, and deliver a clear, actionable plan—from design and permitting through installation, commissioning, and lifelong maintenance.