Healthcare & Medical Facilities

Stay Compliant. Protect Patients. Avoid Medicare Decertification.

Joint Commission EC.02.05.01 — the #1 most-cited deficiency chapter for hospital HVAC and ventilation — is within reach. Purity Guardian gives you the continuous documentation your facility needs, automatically.

No hardware installation required  ·  Automated compliance reports  ·  24/7 monitoring
74%
of Joint Commission EC.02.05.01
deficiencies are HVAC-related
$340K
average remediation cost
after a failed survey
CMS
can decertify hospitals
for ventilation failures
Joint Commission EC.02.05.01

What Surveyors Look For

The Joint Commission evaluates your facility's ability to maintain safe air quality and ventilation systems. EC.02.05.01 covers the built environment — and HVAC deficiencies are far and away the most common finding.

  • 1
    Air Changes per Hour (ACH) — ORs require 20+ ACH, isolation rooms 12+ ACH. Surveyors check your HVAC logs to confirm your system is delivering.
  • 2
    Pressure Differentials — Positive pressure in ORs, negative pressure in isolation rooms. Must be documented and within specification.
  • 3
    Filtration Efficiency — MERV 14 minimum for general HVAC, HEPA for sensitive areas. Filter change records must be current and compliant.
  • 4
    Temperature & Humidity — ORs: 68–73°F, 30–60% RH. Isolation rooms: similar ranges. Out-of-spec readings must be corrected and documented.
  • 5
    Continuous Monitoring Logs — Paper logbooks are insufficient. Surveyors expect automated, timestamped records — not handwritten binder entries.

The Risk Is Real

"Two patients contracted hospital-acquired respiratory infections linked to inadequate air filtration in a surgical wing. Investigation revealed the HVAC system had exceeded its filter replacement interval by 4 months. The facility spent $340,000 on remediation, patient notification, and state inspection response — plus an unrelated CMS validation survey the following quarter."
  • Paper logs don't satisfy the "continuous monitoring" requirement
  • No alerts = no evidence you knew about a problem
  • Post-incident documentation is viewed skeptically by surveyors
  • Filter replacement records must be traceable and dated
ASHRAE 170-2025

Room-Type Requirements at a Glance

ASHRAE 170-2025 (最新版) defines specific ventilation requirements by room classification. Your monitoring must cover the parameters that apply to each space type in your facility.

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Operating Rooms

Class A — Surgical suites

Air Changes/Hour 20+ ACH
Pressure Relationship Positive (+)
Filtration MERV 14 Min (HEPA preferred)
Temperature 68–73°F
Humidity 30–60% RH

ORs must maintain positive pressure to prevent contamination from corridors. All parameters require continuous, timestamped monitoring — spot checks are not acceptable under current Joint Commission interpretation.

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Isolation Rooms

AII — Airborne Infection Isolation

Air Changes/Hour 12+ ACH
Pressure Relationship Negative (−)
Filtration HEPA Required
Temperature 68–73°F
Humidity 30–60% RH

Negative pressure prevents contaminated air from escaping to corridors. HEPA filtration is mandatory. All exhaust must be exhausted directly outdoors — recirculation is not permitted for AII rooms.

What One Undocumented Failure Cost One Facility

A regional hospital's surgical wing used paper logbooks to record filter replacement dates. When a Joint Commission surveyor requested HVAC maintenance records, the log showed the final-stage HEPA filters had been replaced 5 months before the required interval.

The surveyor found the discrepancy during a routine survey. Within 60 days, the facility was subject to a CMS validation survey, a state health department inspection, and a mandatory remediation of the HVAC system in three operating rooms.

The cost — $340,000 in remediation, legal fees, and productivity loss — was preventable with continuous electronic monitoring and automated alert escalation.

$340K
remediation cost
from a single
undocumented failure
Built for Healthcare Compliance

Everything Your Facility Needs to Pass Its Next Survey

From continuous pressure monitoring to automated filter tracking — every feature is designed to satisfy Joint Commission and ASHRAE 170 documentation requirements.

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24/7 Continuous Monitoring

Real-time sensor data for temperature, humidity, CO₂, PM2.5, VOCs, and pressure differentials — timestamped and always accessible.

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Automated Compliance Reports

Generate timestamped reports on demand or on schedule. Every reading is logged with audit-trail metadata — no manual entry required.

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Real-Time Alert Escalation

When any parameter exceeds threshold — pressure drops in an OR, humidity spikes in an isolation room — Purity Guardian alerts the right person immediately.

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Filter Tracking & Replacement Logs

Automated filter lifecycle tracking with replacement reminders and timestamped logs — satisfying Joint Commission documentation requirements.

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Radon Monitoring

For facilities below grade or in high-radon zip codes — continuous radon risk tracking with EPA-based zone reporting and sensor alerts.

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Integration Ready

Connects to your existing building management system (BMS) via API. Works alongside your HVAC equipment — not in place of it.

Get Compliant Before Your Next Survey

Join healthcare facilities nationwide using PurityGuardian to document compliance, catch problems before they become findings, and protect the patients in their care.

PurityGuardian provides monitoring and documentation support. It is not a substitute for professional HVAC maintenance, legal compliance counsel, or official Joint Commission preparation. Compliance outcomes depend on your facility's specific equipment, practices, and operational context.