Commercial Hospital & Lab Ventilation in Downey

Healthcare and Laboratory Ventilation—Built for Compliance and Continuity

Your facility’s air system is mission‑critical. #1 AC Guys designs, installs, and maintains ventilation for hospitals, clinics, pharmacies, and research labs in Downey with a single goal: safe, clean, verified air. We help you meet ASHRAE 170, CDC, AIA FGI, NFPA 99, USP 797/800, ISO 14644, Cal/OSHA, and HCAI (formerly OSHPD) requirements—while optimizing energy and uptime.

What We Design & Service

• Airborne Infection Isolation Rooms (AIIR) and protective environment rooms with reliable negative/positive pressure cascades
• Operating room laminar flow, diffuser arrays, and integrated temperature/humidity control for surgical suites
• USP 797/800 sterile compounding cleanrooms: buffer rooms, ante rooms, and segregated compounding areas with HEPA/ULPA terminal filtration
• BSL‑rated research labs, fume hoods, snorkels, and manifolded lab exhaust systems with redundancy and emergency purge modes
• Custom AHUs with HEPA banks, UV‑C, humidification/dehumidification, and energy recovery (ERV/HEPA‑ERV where appropriate)
• Room‑level VAV/venturi valves, pressure‑independent control, low‑leak ductwork, and cleanable plenums
• Continuous differential pressure monitoring, alarmed door interlocks, and BMS integration for trending and remote alerts

Compliance, Documentation, and HCAI Support

We align designs with ASHRAE 170 air‑change rates and pressure requirements, USP 797/800 segregation and containment rules, and ISO 14644 particle‑based classifications. Our team supports HCAI submittals, IOR coordination, ICRA infection control plans, and field change documentation. Expect sealed drawings, submittal packages, cut sheets, sequences of operation, and O&M manuals that pass audits with confidence.

Design‑Build, Retrofit, and Occupied Upgrades

Whether you’re expanding an OR, converting rooms to AIIR, or upgrading a pharmacy to USP 800 containment, we deliver fast, clean retrofits in active facilities. We deploy temporary negative air, HEPA scrubbers, after‑hours work windows, and clean construction protocols to keep care and research moving. Our value engineering finds lifecycle savings without compromising safety or code compliance.

Commissioning, TAB, and Validation

We verify performance so you can prove it: TAB of supply/exhaust, ACH confirmation, room pressurization mapping, DOP/PAO HEPA leak testing, particle counts for ISO classes, airflow visualization (smoke) tests, sound/vibration checks, and controls functional testing. You receive calibrated monitors, alarm setpoints, and a turnover package with measured results, balancing reports, and trend logs to support accreditation.

Service, Preventive Maintenance, and 24/7 Emergency Response

Critical spaces demand proactive care. We provide filter changeouts (pre/HEPA/ULPA), coil cleaning, sensor calibration, pressure monitor verification, fan/belt inspections, and redundancy testing. Our Downey‑area technicians respond 24/7 with parts on hand and mobile negative‑air units to restore containment fast and minimize downtime.

Energy and Sustainability—Without Compromise

We pair compliance with efficiency: energy recovery for high‑exhaust zones, premium‑efficiency motors, optimized setpoints, and smart control sequences. For non‑critical areas, we can integrate heat pumps or VRF alongside dedicated outdoor air to reduce operating costs and support decarbonization goals while keeping critical rooms isolated and stable.

Why #1 AC Guys

• Fourth‑generation, family‑owned team with 80+ years of engineering know‑how in Southern California
• Factory‑trained by leading manufacturers (Fujitsu, Mitsubishi Electric, Midea, Gree, Haier) and experienced across complex commercial systems
• Proven on large, high‑stakes projects—healthcare, biotech, universities, municipal labs, and specialty clinics
• Our mission: healthy air for a healthy life—delivered with integrity, documentation, and measurable results

Local to Downey—Serving Greater Los Angeles

We’re based in Los Angeles County and know Downey’s healthcare and research environment. Expect quick dispatch, parts access, and familiarity with local inspectors and utility programs. We also serve Orange County, Ventura County, and Western Riverside County for regional operators seeking a single trusted partner.

Project Types We Support

Hospitals and surgical centers, pharmacies and sterile compounding suites, clinical and academic labs, biotech and pharmaceutical R&D, dental and oral surgery suites, veterinary labs, and public‑health testing facilities. From single‑room conversions to campus‑wide ventilation upgrades, we scale to your needs.

Start with a Downey Site Assessment

Book a no‑pressure, on‑site evaluation. We’ll document existing conditions, review code drivers, measure baseline ACH/pressures, and deliver a clear basis‑of‑design, budget, and timeline. With #1 AC Guys, you get a responsive local team that stands behind the work—today, during inspection, and long after turnover.

Ready to improve safety, compliance, and uptime? Contact #1 AC Guys for hospital and lab ventilation in Downey today.