The following is a set of recommended questions school leaders should discuss before launching air filters and sensors in their schools:
1. Strategy and Goals
- What are the main goals? (health protection, absenteeism reduction, learning gains, transparency, community trust)
- Who are the stakeholders? (facilities, teachers, health officials, parent/community groups)
- What metrics define success? (e.g., CO₂ < 800 ppm, PM₂.₅ < 5 µg/m³, ACH ≥ 5, absenteeism reduction)
- How will data and impact be communicated to the school community, board, and public?
2. Needs Assessment & Prioritization
- What specific air quality problems are we solving? (COVID, wildfire smoke, allergens, general IAQ)
- Which schools and spaces have the greatest need? (poorly ventilated buildings, high-occupancy areas, vulnerable populations, etc.)
- What do our current HVAC systems provide, and where are its limitations?
- How are schools prioritized? (high absenteeism, poor ventilation, high asthma burden)
- Have all spaces been inventoried and mapped for airflow needs?
3. Air Quality Monitors
Technical
- What pollutants do we need to monitor? (CO₂, PM₂.₅, PM₁₀, temperature, humidity, TVOCs, CO)
- Are sensors independently validated or calibrated against reference instruments?
- How frequently do they log data? (1-minute, 5-minute intervals)
- Can monitors integrate with building management systems or dashboards?
- What maintenance (calibration, cleaning, replacement) is required? Who performs it?
- What are the upfront and annual costs?
Data & Access
- Who owns the data? Is it exportable (CSV/API)? Who can view or publish it?
- How will data be accessed, stored, displayed, and used to inform decisions?
- Will data be made public? How will it be contextualized for non-experts?
- How will anomalies or false readings be communicated?
4. Portable Air Cleaners
Performance
- What CADR is needed to achieve adequate air changes per hour (eACH) in different classrooms and schools?
- Are units quiet enough for classrooms? (<45 dB on effective setting)
- Do they use MERV-13 filters? Do they use true HEPA (H13+) filtration? What about activated carbon for VOCs?
- Are units certified by AHAM or similar organizations?
- Are they UL/ETL listed?
- Do they emit ozone or other harmful byproducts?
- What is the expected lifespan under daily classroom use?
Operations
- Can they be turned off / down or are their settings fixed?
- Are they floor, wall, or ceiling mounted?
- What are the ongoing filter replacement costs, schedules, and availability?
- What is the energy efficiency and power draw of devices?
- How will placement be determined to optimize airflow and avoid short-circuiting?
- How do these devices complement (not replace) existing HVAC/ventilation systems?
- Do we have adequate electrical capacity in targeted rooms?
5. Funding, Procurement, & Compliance
- Are we aligning with ASHRAE 241, ASHRAE 62.1, CDC guidelines, or state health standards?
- Is our state funded in part on attendance? Could improved air quality reduce absenteeism and increase funding?
- How will we procure devices? (central purchase, school-level, or hybrid; pre-approved vendors/contracts)
- What's the 5 and 10 year total cost of ownership, including filters, sensors, energy, and staff time?
- What are warranty and support terms for service, repairs, or replacements?
- What's the sustainability plan beyond initial funding? (filter replacement, recalibration, upgrades)
6. Implementation & Maintenance
- What is the deployment plan for distributing, tracking, and maintaining units/monitors?
- Who will be trained on setup, maintenance, and troubleshooting?
- Who will be responsible for interpreting data and taking action?
- What are response protocols when readings exceed thresholds?
- How will data inform ventilation improvements or cleaning schedules?
- Who is responsible for filter replacement? On what schedule?
7. Communication & Education
Internal Stakeholder Engagement & Process
- Who needs to be involved from the start? (facilities, teachers, nurses, principals, union representatives, IT for data systems)
- What is the sequence for engagement? (e.g., leadership → facilities → teachers → parents → students)
- How will we secure buy-in from teachers and staff who will use the equipment daily?
- Have we consulted with custodial/maintenance staff who will handle upkeep?
- What concerns or objections might different stakeholders have, and how will we address them?
- How will we involve teachers in placement decisions and response protocols?
- Do building principals and site leaders understand their role in implementation and communication?
External Communication & Transparency
- How will improvements be communicated to parents, staff, and students?
- Will data be made public? How will it be contextualized for non-experts?
- How will we explain what the numbers mean and what actions are being taken?
- What channels will we use? (website, newsletters, social media, community meetings, parent portals)
- How will we build trust, especially in communities skeptical of district initiatives?
Education & Empowerment
- Can air quality data be integrated into STEM curricula or student projects?
- How will we educate the community about indoor air quality and why it matters?
- Can we create opportunities for students to engage with the data meaningfully?
Crisis & Ongoing Communication
- What's the crisis communication plan if data show unsafe levels or devices malfunction?
- How will we communicate when corrective actions are taken based on monitor readings?
- Who is the spokesperson for air quality issues?
- How will we provide regular updates on program success and challenges?
- What feedback mechanisms will allow ongoing input from teachers, parents, and students?
8. Evaluation & Continuous Improvement
- How will the district evaluate health, attendance, and performance changes over time?
- How will we partner with academics to assist with rollout design, evaluation, and data analysis?
- What baseline data (absenteeism rates, air quality measurements, health incidents) will we collect before implementation to enable rigorous comparison?
- How will we disaggregate outcomes by school, grade level, or demographic group to identify which populations benefit most and ensure equitable impact?
- What process will we establish for soliciting and incorporating feedback from teachers, students, and families to continuously refine the program based on user experience?
- How often will technology, placement, and protocols be reviewed and updated?