Airborne infection control is back on the policy agenda. In early 2024, a bipartisan group of lawmakers reintroduced the Airborne Act, a bill meant to push the United States toward healthier indoor air in public buildings. The story was covered by CMM Online, a publication read closely by cleaning and facility teams because it sits right at the intersection of public health, operations, and budgets.
If you manage buildings, janitorial programs, or health and safety risk, this matters. It signals a shift in how government may treat indoor air: less like a comfort feature and more like a basic safety system, similar to drinking water standards and food safety rules.
This post breaks down what the Airborne Act is, why it is being reintroduced now, what it could mean for facility operations, and what you can do today even before any law changes.
1. What the Airborne Act is trying to do
The Airborne Act is designed to improve indoor air quality (IAQ) to reduce the spread of airborne illnesses. While details can change across versions of a bill, the core intent described in the CMM Online coverage is consistent with how many public health and building science groups have framed the issue since 2020:
1) Set clearer expectations for indoor air quality in public buildings.
2) Support ventilation and filtration improvements.
3) Encourage guidance, standards, and practical implementation, not just slogans about “good air.”
Why legislation at all? Because indoor air has long lived in a gray zone. Building codes touch ventilation, but they vary by state and often focus on minimums tied to odors and carbon dioxide, not infection risk. Workplace rules address some hazards, but not day to day airborne disease control. During the pandemic, the public learned fast that air matters. Policy has been slower to catch up.
A useful way to think about it is this: surface disinfection has clear playbooks; air has not had the same level of operational clarity in most buildings.
2. Why this is happening now
The reintroduction is not random. Three forces have been pushing indoor air back into the spotlight.
A. The evidence base is stronger than it was in 2020
By now, the scientific consensus is firm that many respiratory viruses spread efficiently through aerosols, especially in crowded, poorly ventilated indoor spaces. That includes SARS-CoV-2, influenza, and RSV. The argument is not that surfaces never matter; it is that you cannot clean your way out of an airborne problem.
Since 2020, researchers have published a steady stream of studies linking ventilation and filtration improvements to lower transmission risk. You also see more real world reports from schools and workplaces that upgraded filters, increased outdoor air, and added portable HEPA units.
B. Building operators need a stable target
Facility teams have lived through years of shifting guidance. First it was deep cleaning. Then it was ventilation. Then it was masking. Then it was “back to normal.” But the viruses did not leave. Flu seasons remain disruptive. Covid still drives absenteeism and operational strain.
A law like the Airborne Act is an attempt to create consistent direction, ideally paired with funding and technical support. Whether it succeeds depends on how the bill is written and resourced, but the goal is stability.
C. The economics are clearer
Air upgrades cost money. But so does sickness.
The United States loses billions each year to absenteeism and reduced productivity from respiratory illness. Employers and schools see it in missed shifts, substitute costs, delayed projects, and strained staffing. The last few years made those costs easier to see, even if they are still hard to calculate precisely building by building.
3. The key idea: indoor air is a shared utility
Most people think of HVAC as heating and cooling. Infection control reframes it as a public health system. That change has practical implications.
If air is a shared resource, then one person’s risk is shaped by everyone’s breathing, plus how well the building removes or dilutes airborne particles. That is why standards matter most in shared spaces:
• Classrooms
• Waiting rooms
• Public transit hubs
• Break rooms
• Open office areas
• Correctional facilities
• Shelters
• Older government buildings with limited outdoor air
Cleaning teams already manage shared risk through restrooms, touchpoints, and waste. The Airborne Act suggests air should be managed with the same seriousness and routine.
4. What “clean air” means in practice
There is no single magic metric, but these are the building blocks most experts agree on.
A. Ventilation (outdoor air)
Ventilation dilutes indoor contaminants by bringing in outdoor air and exhausting stale air. More ventilation is not always better in every climate because energy costs and humidity control matter, but “minimum code” is often not enough for infection control goals.
B. Filtration (removing particles)
Better filters remove more particles from recirculated air. Many commercial buildings can move from MERV 8 toward MERV 13, if the system can handle the pressure drop and still deliver airflow. That “if” matters, and it is why assessments are critical before you mandate a filter across every unit.
Portable HEPA filtration can fill gaps, especially in older buildings or rooms with poor airflow. It is also easier to deploy quickly.
C. Air cleaning (supplemental)
Upper room germicidal ultraviolet (UVGI) is a proven technology when designed and installed correctly. It has a long history in tuberculosis control and has regained attention for broader respiratory risk reduction. The big caution is quality of design, commissioning, and maintenance.
D. Verification (measuring performance)
You cannot manage what you do not measure.
Carbon dioxide monitoring is often used as a ventilation proxy in occupied spaces. CO2 does not measure viruses, but it helps you spot rooms that routinely run “stale” during occupancy. Particle counts can also help in some contexts, though interpretation is trickier.
Many building engineers now talk in terms of equivalent clean air delivery, which combines outdoor air, filtration, and air cleaning into a comparable value.
5. What recent guidance and research trends say
Even without a single law, the last few years brought major developments.
A. ASHRAE guidance has become more explicit
ASHRAE, the leading professional body for HVAC standards, issued updated guidance during the pandemic emphasizing ventilation, filtration, and air cleaning to reduce airborne transmission risk. Many facility leaders use ASHRAE documents as the operational backbone for IAQ improvements because they translate health goals into engineering actions.
B. CDC and other public health groups increasingly emphasize ventilation
Public health messaging has shifted from primarily surface and droplet messaging to clearer acknowledgment of airborne spread, along with practical ventilation and filtration recommendations. That shift supports the logic behind a bill like the Airborne Act.
C. Schools became the proving ground
A lot of practical learning happened in K to 12 buildings. Many districts used federal relief funds for HVAC upgrades, portable HEPA units, and monitoring pilots. The results were mixed because building conditions vary, but the broader lesson was consistent: you can often reduce risk with pragmatic steps, even in older facilities.
6. Case examples that make the topic real
The Airborne Act can feel abstract until you picture a real building with real constraints. Here are a few scenarios that reflect what many facility teams have faced.
Case example 1: A school wing with poor ventilation
Situation: A 1970s classroom wing routinely runs stuffy, teachers complain of headaches, and winter illnesses spread fast.
Practical steps:
1) Measure CO2 over several school days to identify peak problem rooms.
2) Verify outdoor air dampers and schedules, then recommission ventilation to match occupancy.
3) Upgrade filters as far as the fan can handle while maintaining airflow.
4) Add portable HEPA units to the worst rooms, sized to deliver several air changes per hour.
5) Track absenteeism trends and complaints before and after.
Why this matters: This is exactly the kind of environment lawmakers have in mind. It is also the kind of environment where “cleaning harder” has limited effect on airborne spread.
Case example 2: A municipal office with a tight budget
Situation: A city hall building has an aging air handling system, limited capital funds, and constant public foot traffic at counters.
Practical steps:
1) Start with low cost maintenance and balancing. Many systems underperform because of basic issues like clogged coils, stuck dampers, and poor schedules.
2) Deploy portable filtration at high interaction zones and waiting areas.
3) Add simple signage and occupancy management in small waiting rooms during peaks.
4) Set a multi year plan for equipment upgrades tied to end of life replacement cycles.
Why this matters: If the Airborne Act ties expectations to funding and technical support, buildings like this benefit. If it sets expectations without support, they struggle.
Case example 3: A healthcare waiting room
Situation: A clinic has immunocompromised patients in a small waiting room. People show up coughing. Staff want fewer exposures.
Practical steps:
1) Increase clean air delivery, either via system upgrades or portable HEPA units placed for good mixing.
2) Consider upper room UVGI if ceiling height and room layout are suitable.
3) Use CO2 monitoring to verify ventilation during busy times.
4) Adjust check in flow to reduce crowding.
Why this matters: Healthcare has long used engineering controls, but outpatient spaces often lag behind inpatient areas. Air improvements can reduce risk for both patients and staff.
7. What this could mean for facilities and cleaning operations
If bills like the Airborne Act gain traction, the ripple effects will not land only on engineers. They will land on operations, compliance, contracting, and communications.
A. More coordination between EVS, facilities, and safety teams
Indoor air sits between departments. Environmental services teams are often the “public face” of hygiene, while building engineers control HVAC. If leadership treats air as infection control, these teams will need shared plans and shared language.
B. Procurement and contracts may change
Expect more RFP language about:
• Minimum filtration targets
• Maintenance documentation for filter changes
• Portable HEPA deployment plans
• Commissioning and verification reports
• IAQ monitoring and dashboards
Cleaning contractors may be asked to help manage portable units, maintain logs, or coordinate with engineering teams. That is not traditional janitorial scope, but it is already happening in some markets.
C. Training needs will expand
You cannot hand a site team a HEPA unit and assume it will be used correctly. Placement, speed settings, noise complaints, and maintenance all matter.
Similarly, filter upgrades require staff to understand compatibility, pressure drop, and when “better filter” can backfire by reducing airflow.
8. Common pitfalls and how to avoid them
Pitfall 1: Treating CO2 as a safety stamp
CO2 is a useful proxy for ventilation relative to occupancy. It is not a direct measure of pathogen risk, and it does not account for filtration or air cleaning. Use it as a screening tool, not a guarantee.
Pitfall 2: Installing higher MERV filters without checking airflow
If fans cannot handle the added resistance, airflow drops. That can make IAQ worse. Have an HVAC professional assess system capacity and confirm airflow after changes.
Pitfall 3: Buying underpowered portable units
Many consumer devices are not sized for classrooms or conference rooms. Look for a verified clean air delivery rate and size units to the room, then run them at a speed people will actually tolerate.
Pitfall 4: Forgetting maintenance
Filters load up. UV lamps age. Sensors drift. Any plan that ignores ongoing maintenance becomes a short lived pilot.
9. A practical checklist you can use now
Even if the Airborne Act takes time to move, you can act now with a simple plan.
1) Identify high risk spaces
Start with small, crowded rooms with high turnover. Waiting areas, break rooms, conference rooms, and classrooms.
2) Verify HVAC basics
Confirm outdoor air settings, schedules, damper function, and that equipment is maintained.
3) Upgrade filtration carefully
Move to higher efficiency filters where systems can support it. Validate performance after the change.
4) Add portable HEPA where needed
Use portable filtration to target rooms that cannot be fixed quickly.
5) Measure something
At minimum, use CO2 monitoring in key spaces during typical occupancy. Use the results to prioritize.
6) Document what you do
If regulation comes, documentation will matter. Logs also help you defend budgets by showing progress and needs.
7) Communicate in plain language
Tell occupants what you changed and why. People trust what they can understand.
10. Conclusion: the Airborne Act is a signal you should not ignore
The reintroduction of the bipartisan Airborne Act, as reported by CMM Online, is another sign that indoor air is moving from a “nice to have” into the realm of public expectations and possible regulation. For facility leaders, it is a reminder to get ahead of the curve.
You do not need to wait for a law to make progress. Start with the spaces that matter most. Fix the basics. Measure performance. Add targeted filtration and air cleaning where it makes sense. And build a plan you can maintain.
Because the real takeaway is simple: if you manage buildings, you already manage health outcomes. Air is part of that job now, whether or not the policy catches up this year.
If you want, share your building type and a few constraints (age of HVAC, climate, budget, occupant complaints). I can suggest a practical IAQ upgrade path and the most sensible metrics to track.