Commercial Hospital & Lab Ventilation in Rialto

#1 AC Guys specializes in high-stakes commercial ventilation where safety, uptime, and compliance converge. Our mission is healthy air for healthy life, applied to hospitals, clinics, and labs in Rialto. With 80+ years of engineering expertise and a 4th-generation team, we turn complex requirements into buildable, reliable systems that perform day after day.

What we deliver

• Negative and positive pressure rooms: AIIRs, operating rooms, sterile processing, and protective environments with monitored differential pressure.
• HEPA filtration and UVGI: High-efficiency particulate capture and optional ultraviolet germicidal irradiation for added infection control.
• Cleanroom and pharmacy ventilation: ISO 14644 and USP 797/800 aligned designs for compounding, chemo, and hazardous drug rooms.
• Laboratory ventilation: ANSI Z9.5 aligned strategies, VAV fume hoods, biosafety cabinet integration, and proper dilution/exhaust routing.
• Precise airflow and ACH: Right-sized air change rates, low noise, and energy-smart sequencing.
• Smarter controls: BAS integration, touch-safe setpoints, alarms, trends, and continuous pressure/airflow monitoring.
• Redundancy and resilience: N+1 fans and filtration where required, with clear failover logic and alerts.
• Testing, adjusting, and balancing (TAB): Field verification of flows, pressures, and cleanliness with documented results.

Codes and standards alignment

We design to align with industry guidance to help your facilities meet policy and accreditation goals: ASHRAE 170 for healthcare ventilation, ANSI Z9.5 for labs, ISO 14644 for cleanrooms, USP 797/800 for compounding pharmacies, CDC recommendations for isolation and airflow, NFPA 99 considerations, and California Title 24 energy code. For projects subject to state plan review, we coordinate with your design team and stakeholders to support documentation and submittals for HCAI-reviewed scopes as needed.

Result: practical solutions that support infection control, occupational safety, and survey readiness — without sacrificing maintainability or energy performance.

Our proven process

• Assessment and planning: On-site survey, airflow mapping, and risk review of spaces such as ORs, AIIRs, labs, and pharmacies.
• Engineering and modeling: Load calculations, pressure cascade design, filtration strategy, and controls sequence development.
• Clean installation: Phased work plans, infection control risk assessment coordination, and clean build practices to minimize disruption.
• Controls and integration: BMS graphics, alarming, trending, and role-based access so staff can see, trust, and manage the system.
• TAB, commissioning, and validation: Measured proof of airflow, pressure, and ACH; functional tests; staff signoff; closeout documentation.
• Training and handoff: Easy SOPs, alarm thresholds, and maintenance checklists your team can use on day one.
• Lifecycle service: Preventive maintenance, filter programs, calibration, and performance audits to sustain compliance.

Why #1 AC Guys

Family-owned, 4th-generation engineers with 80+ years of engineering depth. Factory-trained at Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and Hier (China). We excel at large, complex commercial scopes and deliver clear communication, disciplined scheduling, and accountable workmanship. Our guiding principle is simple: healthy air supports healthy outcomes.

Applications we serve

• Hospitals, clinics, and ambulatory surgery centers
• Pharmacies and cleanrooms requiring USP 797/800 and ISO alignment
• Clinical, academic, and industrial laboratories
• Biotech, life science, and diagnostics facilities
• Public health and municipal health departments
• Veterinary hospitals and research labs

Serving Rialto and nearby areas

We support facilities in Rialto and surrounding communities across the Inland Empire and Western Riverside County, as well as Los Angeles County, Orange County, and Ventura County. Expect responsive scheduling, after-hours cutovers when appropriate to reduce downtime, and coordination with facilities, EH&S, and infection prevention teams.

Outcomes that matter

Stable pressure differentials to protect patients and staff.
Measured air change rates to meet procedural demand.
Clean, quiet, energy-efficient operation with maintainable access.
Documentation your surveyors and auditors can follow.

Get a compliant, buildable plan

If you need to add AIIR beds, modernize OR ventilation, expand a pharmacy, or correct drifting pressures, we can help. Request a site assessment in Rialto to receive a clear scope, timeline, and budget, along with options to phase work around clinical operations. #1 AC Guys delivers hospital and lab ventilation engineered to perform on day one and every day after.