Commercial, Hospital & Lab Ventilation in Los Angeles

Why mission‑critical facilities choose #1 AC Guys

We are a fourth‑generation, family‑owned HVAC engineering firm with 80+ years of know‑how, specializing in complex commercial, hospital, and laboratory ventilation. From negative/positive pressure rooms to HEPA filtration, energy recovery, and smart controls, we deliver systems built to meet clinical and research demands while optimizing energy use and lifecycle cost.

Healthcare & laboratory ventilation expertise

• Hospitals & Clinics: Operating suites, isolation rooms (AIIR), sterile processing, ICU, patient areas, pharmacies.
• Laboratories: BSL-1/2/3 spaces, cleanrooms, vivariums, compounding (USP 797/800), analytical and R&D labs.
• Commercial & Institutional: Medical office buildings, universities, biotech, pharma, manufacturing, and clean manufacturing.

Our designs follow applicable standards and guidelines including ASHRAE 62.1 and 170, California Title 24, NFPA 45/99, CDC recommendations, ISO 14644 for cleanrooms, and manufacturer specifications. We coordinate early with your infection prevention, EHS, and facilities teams to align ventilation performance with clinical and research protocols.

What we deliver

• Design‑Build & Engineering: Load calculations, air change rates, pressure zoning, segregation, and redundancy planning.
• Filtration & Air Quality: HEPA/MERV‑13+ filtration, UV‑C options, advanced IAQ sensors (PM2.5, VOCs, CO₂), and analytics.
• Pressure Control: Negative and positive pressure rooms, anterooms, directional airflow, and room pressurization monitoring.
• Exhaust Systems: Fume hoods, biosafety cabinets, snorkels, high‑plume fans, corrosion‑resistant ductwork, energy recovery.
• Energy & Controls: ERV/HRV, demand‑controlled ventilation, VAV, hydronic optimization, BACnet integration, remote alarms.
• Compliance Support: Submittals, commissioning, TAB, validation reports, and ongoing performance trending.
• Retrofits & Upgrades: MEP coordination in active facilities, phasing plans, after‑hours work, and interim filtration strategies.
• Service & Maintenance: Preventive programs, emergency response, filter changes, calibration, and annual re‑certification.

Factory‑trained, brand‑agnostic

Our engineers and technicians are factory‑trained by Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). We select equipment based on performance, maintainability, and total cost of ownership—not brand quotas—so your facility gets the right solution for its critical environment.

Clean, safe, efficient by design

• Documented performance: Target ACH, pressure differentials, filtration tiers, and thermal comfort verified during TAB and commissioning.
• Resilience: N+1 strategies, fault detection, and remote alarms to protect uptime in operating rooms and labs.
• Energy intelligence: Heat recovery, smart scheduling, and demand control reduce operating cost without compromising safety.

Our process

1. Assessment: Site walk, risk review, and data logging of airflow, pressure, and IAQ baselines.
2. Engineering: Code‑aligned design, submittals, and coordination with architects, GCs, and facilities teams.
3. Build & Commission: Clean construction practices, ICRA containment if required, TAB, and validation.
4. Train & Maintain: Staff training, SOPs, service schedules, and performance dashboards.

Service area

Based in Los Angeles, we serve Los Angeles County and nearby regions including Orange County, Ventura County, and Western Riverside County. We respond quickly and stage after‑hours work to keep patient care and research moving without disruption.

Results you can measure

Facilities choose #1 AC Guys for complex projects that require precision and accountability. Expect clear scopes, transparent pricing, and post‑project documentation that helps you demonstrate compliance and track ongoing performance.

About #1 AC Guys

We are a fourth‑generation, family‑owned HVAC business with over eight decades of engineering excellence. Our mission is simple: healthy air at work and at home for a healthier life. That means putting safety, quality, and service first—every time.

Get a code‑aware plan today

Schedule a free on‑site assessment for your commercial, hospital, or lab ventilation project in Los Angeles. We will provide a practical design path, budget options, and a clear timeline so you can move forward with confidence.

Call now or request service online—#1 AC Guys is ready to engineer clean, reliable air for your critical environment.