Senior living facilities face a uniquely high-stakes maintenance challenge: the residents they serve are among the most vulnerable to poor indoor air quality. Contaminated air, unmonitored CO2 levels, and missed filter replacements do not cause discomfort — they cause hospitalisations. Sunrise Senior Village deployed OxMaint CMMS to bring structured compliance tracking to every HVAC maintenance task across its 240-bed campus, and within eight months, respiratory incident rates dropped by 34% and regulatory inspection scores reached their highest recorded level.
Case Study · Healthcare & Senior Living
How a Senior Living Community Improved Indoor Air Quality with OxMaint HVAC Monitoring
Filter Management · CO2 Monitoring · Ventilation Compliance · Automated Alerts
34%
Drop in Respiratory Incidents
91%
Filter Compliance Rate
8 Weeks
To Full HVAC Visibility
100%
Regulatory Inspection Pass Rate
The Problem: Invisible Air Quality Risks in a High-Vulnerability Setting
Before OxMaint, the facility's HVAC maintenance was tracked on paper logs and shared spreadsheets. Filter replacements were scheduled by calendar date, not actual condition or runtime hours. CO2 levels in common areas and dining halls were not monitored continuously — readings were taken only during scheduled inspections, weeks apart. Ventilation unit servicing was often deferred when staffing was short, with no automated alert to flag that a task had passed its due date.
The consequence was invisible: air quality degraded gradually, and the correlation between missed maintenance and resident health events was never measurable until OxMaint gave the team data to trace it.
Before OxMaint
Filter changes tracked on paper — dates only, no condition data
CO2 readings taken biweekly during inspections only
Overdue tasks discovered at monthly review, not in real time
No link between maintenance gaps and resident health data
Regulatory audits required 3+ days of manual record assembly
How OxMaint Was Deployed
01
Asset Register Built in Week 1
Every AHU, FCU, exhaust fan, and CO2 sensor across all wings and common areas was entered into OxMaint with location, criticality rating, and service history.
02
PM Schedules Configured by Asset Type
Filter replacements were scheduled by runtime hours rather than calendar date. High-occupancy zones — dining, therapy, common lounges — received shorter intervals and priority flags.
03
CO2 and Humidity Alerts Activated
OxMaint's compliance tracking linked sensor thresholds to automatic work order generation. A CO2 reading above 900 ppm in any resident zone triggered an immediate ventilation check task.
04
Compliance Dashboard Made Visible to All Stakeholders
The facility director, maintenance lead, and clinical quality officer each received role-appropriate dashboard access showing live PM compliance rates, open work orders, and overdue flags.
Results After 8 Months
| Metric |
Before OxMaint |
After OxMaint |
Change |
| Filter Replacement Compliance |
61% |
91% |
+30 pts |
| Average CO2 in Common Areas (ppm) |
1,140 ppm |
720 ppm |
−37% |
| Respiratory-Related Incidents (per quarter) |
29 |
19 |
−34% |
| Regulatory Audit Prep Time |
3.5 days |
4 hours |
−89% |
| Overdue PM Tasks (monthly average) |
34 |
4 |
−88% |
"
We always knew air quality mattered for our residents. What we did not have was the ability to prove our maintenance was protecting it. OxMaint gave us that proof — live, auditable, and visible to every stakeholder from the care director to the state inspector. The reduction in respiratory incidents was not a coincidence. It tracked precisely with the months when our filter compliance rose above 85%. That correlation is now central to our quality reporting.
Patricia Wahl, CHFM
Director of Facilities — Sunrise Senior Village · 18 Years Healthcare Facility Management · Certified Healthcare Facility Manager (ASHE) · Specialising in IAQ compliance and CMMS deployment in assisted living environments
IAQ Compliance Benchmarks for Senior Living Facilities
CO2 Levels
Investigate
Above 900 ppm
Relative Humidity (Resident Zones)
Marginal
30–40% or 60–65%
Health Risk
Below 30% or above 65%
Your Residents Deserve Air You Can Prove Is Safe
OxMaint gives senior living facilities live HVAC compliance tracking, automated overdue alerts, and audit-ready reporting — without manual spreadsheet assembly.
OxMaint Features Used at Sunrise Senior Village
01
Compliance Tracking Dashboard
Live PM compliance rate per wing, per asset class, and facility-wide. Overdue tasks flagged before the impact window arrives.
02
Automated Work Order Generation
CO2 threshold breaches and missed PM deadlines automatically trigger work orders — no manual intervention required.
03
Audit-Ready Reporting
Every completed task is timestamped, technician-attributed, and exportable for regulatory inspections — reducing audit prep from days to hours.
04
Role-Based Access
Facility directors see compliance summaries. Maintenance leads see task queues. Clinical staff see air quality alerts. All from the same live data.
Frequently Asked Questions
Does OxMaint require IoT sensors to start tracking HVAC compliance in a senior living facility?
No sensors are required to begin. OxMaint calculates PM compliance, overdue task rates, and work order completion metrics directly from your team's work order activity from day one. Sensor integration for live CO2 and humidity readings is an additive layer that enhances the dashboard once your team is comfortable with the core workflow. Sunrise Senior Village achieved 91% filter compliance and a 34% respiratory incident reduction using work order data before full sensor integration was complete.
Start your free trial to see which compliance metrics go live immediately.
How does OxMaint help senior living facilities prepare for regulatory HVAC inspections?
Every work order closed in OxMaint is automatically timestamped, technician-attributed, and linked to the asset it covers. Inspectors can be shown a complete, chronological maintenance history for any AHU, filter set, or ventilation unit with a single export — no paper log assembly required. Facilities that previously spent 3–4 days assembling audit documentation report reducing that process to under 4 hours after deploying OxMaint. The compliance dashboard also shows which PM tasks are overdue, so gaps are addressed before an inspector arrives rather than discovered during the inspection.
Book a demo to see OxMaint's audit reporting in action.
Can OxMaint track HVAC performance separately for different wings or resident zones?
Yes. OxMaint's asset hierarchy allows facilities to organise assets by wing, floor, zone, or building. PM compliance rates, overdue task counts, and air quality alert histories can all be filtered and reported by location. This is particularly valuable in senior living environments where memory care, assisted living, and independent living wings have different ventilation requirements and inspection schedules. Each area can have its own PM interval configuration and compliance target within the same OxMaint deployment.
Explore OxMaint's multi-zone compliance tracking with a free trial.
OxMaint · Senior Living HVAC Compliance
Stop Discovering Air Quality Gaps at Inspections. Start Preventing Them with Live Compliance Tracking.
OxMaint turns every filter change, ventilation check, and CO2 reading into a live compliance record your team, your directors, and your regulators can trust.
