Filter changes, fresh-air boosts, surface wiping, floor care, and inspection should not share one generic interval.
Intervention frequency planner
How often should the room be reset?
Once the leading room pressure is clear, compare practical cadences for outside air, HVAC filters, portable filtration, cleaning activities, and inspection inside real budget and labor limits.
Planning inputs
Inputs a facility manager can reason about.
The sliders use the same four IAQng lenses as the site: air, people, service, and context. Expand a lens when you want to tune the details; budget and labor sit outside the risk model as planning constraints.
Intervention planner
Use after the risk model identifies the leading pressure.
This page does not create a second public score. It reuses the same assumptions and risk core, then translates the result into practical cadences a facility team can debate, price, and revise.
A room used two hours a day is not the same operating problem as a room used near 24/7.
The useful question is not just what would help. It is what should happen first with finite labor and dollars.
Recommended next moves
Run the model.
Adjust a slider to generate a recommendation.
Check constraints.
Budget and labor shape what can actually happen.
Compare the cadences.
Each intervention has a different operational trigger.
Person-hours
0
per week
Clean-air gap
0
CADR cfm needed
Service pressure
0
cleaning and inspection load
Weekly plan cost
$0
rough placeholder
Budget read
Move sliders to see whether the recommended plan fits the weekly budget.
Fresh air
$0/wk
Pipe in outside air on a cadence.
0 hrbetween checks
0 minflush duration
HVAC filters
$0/wk
Change filters on a condition-aware interval.
0 wkreplace interval
0 wkinspect interval
Portable filtration
$0/wk
Use portable filtration when the clean-air gap is real.
0300 CADR units
0target added CADR
Cleaning plan
$0/wk
Separate cleaning tasks by trigger.
0 hrwipe high-touch
0 dfloor care
0 wkhigh dusting
0 wkwalls/detail
Inspection
$0/wk
Inspect sources before they become patterns.
0 dinspection cadence
0condition reviews / week
Show the work
The model is organized around decisions, not a single magic score.
The planner starts from the same nonlinear core as the risk model: infectious presence, dose pressure, clean-air removal, service demand, and external context. Each intervention then responds to a different part of that pressure.
Fresh air
Driven by occupancy, activity, community load, whether outdoor air is usable, and the cost of conditioning that air to the desired indoor range. Smoke or poor AQI shifts the answer toward filtration instead of outside-air flushing.
Filters
Driven by dust burden, filter loading, outdoor particles, operating hours, and the energy cost of higher filtration. Viral load may raise the desired filtration target, but it should not pretend the filter is physically loaded.
Portable filtration
Driven by the clean-air gap: target clean air minus current clean air. Useful when HVAC capacity is limited, outdoor air is poor, or community load is elevated.
Cleaning activities
High-touch wiping, floor care, high-bay dusting, and wall/detail work should not share one cadence. Person-hours, dust, community load, and room schedule change each trigger differently.
Inspection
Driven by persistence: dust, odor, moisture, filter loading, repeated high-pressure windows, and unresolved conditions. The goal is finding sources early, not just doing more routine work.
Model boundary
A planning tool, not a validated forecast.
This planner estimates intervention cadence under stated assumptions. It does not estimate infection probability, diagnose illness risk, or replace facility policy, engineering review, or validated building data.
Use it to ask smaller questions
Should we clean every three hours or after a person-hour threshold? Is portable filtration worth it here? Does wildfire smoke change the outside-air strategy?
Budget matters
The planner includes a rough budget read so recommendations do not float away from operational reality.
Calibration comes later
Real deployment would need facility data, actual filter specs, CADR values, labor costs, intervention logs, and expert review.
Cost assumptions are placeholders for design discussion: portable unit cost is modeled as weekly amortized/rental pressure, cleaning cost is based on room size and resets, fresh-air cost includes rough conditioning pressure for heating/cooling outside air, and filter cost assumes a single representative filter path plus added filtration energy. These are deliberately editable assumptions for a future version.