104TH GENERAL ASSEMBLY State of Illinois 2025 and 2026 HB1923 Introduced , by Rep. Camille Y. Lilly SYNOPSIS AS INTRODUCED: 105 ILCS 5/2-3.206 new Amends the School Code. Provides that the State Board of Education shall require all school districts to supply all active classroom instructors, all school staff and administration, and district leadership with an educational document explaining the values of good indoor air quality. Provides that the State Board shall require all school districts to ensure that all active classrooms that are not mechanically ventilated have at least 2 properly functioning windows, or one window in situations where only one is present, that can open and can safely stay open. Provides that the State Board shall require all school districts to ensure that all active classrooms are equipped with an air quality monitor that meets specified requirements. Provides that the State Board shall require all school districts to ensure that all active classrooms are equipped with a portable air cleaner that meets specified requirements. Provides that the State Board shall require all school districts to supply each school with 5 additional portable air cleaners and 5 additional air quality monitors to be used in school health offices, libraries, cafeterias, and other similar spaces. Provides that the State Board shall require all school districts to undertake a ventilation verification assessment of all mechanical ventilation systems in the school district performed by a certified assessor or a mechanical engineer. Makes certain provisions subject to appropriation, and makes other changes. LRB104 09447 LNS 19507 b STATE MANDATES ACT MAY REQUIRE REIMBURSEMENT MAY APPLY A BILL FOR 104TH GENERAL ASSEMBLY State of Illinois 2025 and 2026 HB1923 Introduced , by Rep. Camille Y. Lilly SYNOPSIS AS INTRODUCED: 105 ILCS 5/2-3.206 new 105 ILCS 5/2-3.206 new Amends the School Code. Provides that the State Board of Education shall require all school districts to supply all active classroom instructors, all school staff and administration, and district leadership with an educational document explaining the values of good indoor air quality. Provides that the State Board shall require all school districts to ensure that all active classrooms that are not mechanically ventilated have at least 2 properly functioning windows, or one window in situations where only one is present, that can open and can safely stay open. Provides that the State Board shall require all school districts to ensure that all active classrooms are equipped with an air quality monitor that meets specified requirements. Provides that the State Board shall require all school districts to ensure that all active classrooms are equipped with a portable air cleaner that meets specified requirements. Provides that the State Board shall require all school districts to supply each school with 5 additional portable air cleaners and 5 additional air quality monitors to be used in school health offices, libraries, cafeterias, and other similar spaces. Provides that the State Board shall require all school districts to undertake a ventilation verification assessment of all mechanical ventilation systems in the school district performed by a certified assessor or a mechanical engineer. Makes certain provisions subject to appropriation, and makes other changes. LRB104 09447 LNS 19507 b LRB104 09447 LNS 19507 b STATE MANDATES ACT MAY REQUIRE REIMBURSEMENT MAY APPLY STATE MANDATES ACT MAY REQUIRE REIMBURSEMENT MAY APPLY A BILL FOR 104TH GENERAL ASSEMBLY State of Illinois 2025 and 2026 HB1923 Introduced , by Rep. Camille Y. Lilly SYNOPSIS AS INTRODUCED: 105 ILCS 5/2-3.206 new 105 ILCS 5/2-3.206 new 105 ILCS 5/2-3.206 new Amends the School Code. Provides that the State Board of Education shall require all school districts to supply all active classroom instructors, all school staff and administration, and district leadership with an educational document explaining the values of good indoor air quality. Provides that the State Board shall require all school districts to ensure that all active classrooms that are not mechanically ventilated have at least 2 properly functioning windows, or one window in situations where only one is present, that can open and can safely stay open. Provides that the State Board shall require all school districts to ensure that all active classrooms are equipped with an air quality monitor that meets specified requirements. Provides that the State Board shall require all school districts to ensure that all active classrooms are equipped with a portable air cleaner that meets specified requirements. Provides that the State Board shall require all school districts to supply each school with 5 additional portable air cleaners and 5 additional air quality monitors to be used in school health offices, libraries, cafeterias, and other similar spaces. Provides that the State Board shall require all school districts to undertake a ventilation verification assessment of all mechanical ventilation systems in the school district performed by a certified assessor or a mechanical engineer. Makes certain provisions subject to appropriation, and makes other changes. LRB104 09447 LNS 19507 b LRB104 09447 LNS 19507 b LRB104 09447 LNS 19507 b STATE MANDATES ACT MAY REQUIRE REIMBURSEMENT MAY APPLY STATE MANDATES ACT MAY REQUIRE REIMBURSEMENT MAY APPLY STATE MANDATES ACT MAY REQUIRE REIMBURSEMENT MAY APPLY A BILL FOR HB1923LRB104 09447 LNS 19507 b HB1923 LRB104 09447 LNS 19507 b HB1923 LRB104 09447 LNS 19507 b 1 AN ACT concerning education. 2 Be it enacted by the People of the State of Illinois, 3 represented in the General Assembly: 4 Section 5. The School Code is amended by adding Section 5 2-3.206 as follows: 6 (105 ILCS 5/2-3.206 new) 7 Sec. 2-3.206. School ventilation. 8 (a) As used in this Section: 9 "Active classroom" means any room currently being used for 10 any duration of in-person instruction of 4 or more students at 11 a time. 12 "ASHRAE" means the American Society of Heating, 13 Refrigerating and Air-Conditioning Engineers. 14 "Certified assessor" means: 15 (1) a certified technician; or 16 (2) a person who is certified to perform ventilation 17 verification assessments of heating, ventilation, and air 18 conditioning systems through a certification body 19 accredited by the American National Standards Institute. 20 "CADR" means clean air delivery rate. 21 "Certified technician" means a person who is certified as 22 a Testing, Adjusting, and Balancing Bureau Technician by the 23 International Certification Board and accredited to comply 104TH GENERAL ASSEMBLY State of Illinois 2025 and 2026 HB1923 Introduced , by Rep. Camille Y. Lilly SYNOPSIS AS INTRODUCED: 105 ILCS 5/2-3.206 new 105 ILCS 5/2-3.206 new 105 ILCS 5/2-3.206 new Amends the School Code. Provides that the State Board of Education shall require all school districts to supply all active classroom instructors, all school staff and administration, and district leadership with an educational document explaining the values of good indoor air quality. Provides that the State Board shall require all school districts to ensure that all active classrooms that are not mechanically ventilated have at least 2 properly functioning windows, or one window in situations where only one is present, that can open and can safely stay open. Provides that the State Board shall require all school districts to ensure that all active classrooms are equipped with an air quality monitor that meets specified requirements. Provides that the State Board shall require all school districts to ensure that all active classrooms are equipped with a portable air cleaner that meets specified requirements. Provides that the State Board shall require all school districts to supply each school with 5 additional portable air cleaners and 5 additional air quality monitors to be used in school health offices, libraries, cafeterias, and other similar spaces. Provides that the State Board shall require all school districts to undertake a ventilation verification assessment of all mechanical ventilation systems in the school district performed by a certified assessor or a mechanical engineer. Makes certain provisions subject to appropriation, and makes other changes. LRB104 09447 LNS 19507 b LRB104 09447 LNS 19507 b LRB104 09447 LNS 19507 b STATE MANDATES ACT MAY REQUIRE REIMBURSEMENT MAY APPLY STATE MANDATES ACT MAY REQUIRE REIMBURSEMENT MAY APPLY STATE MANDATES ACT MAY REQUIRE REIMBURSEMENT MAY APPLY A BILL FOR 105 ILCS 5/2-3.206 new LRB104 09447 LNS 19507 b STATE MANDATES ACT MAY REQUIRE REIMBURSEMENT MAY APPLY HB1923 LRB104 09447 LNS 19507 b HB1923- 2 -LRB104 09447 LNS 19507 b HB1923 - 2 - LRB104 09447 LNS 19507 b HB1923 - 2 - LRB104 09447 LNS 19507 b 1 with ISO/IEC 17024, which is the conformity assessment 2 regarding general requirements for bodies operating 3 certification of persons, by the American National Standards 4 Institute in Testing Adjusting and Balancing or another 5 nationally recognized certifying body accredited to ISO/IEC 6 17024 in testing adjusting and balancing. 7 "CFM" means cubic feet per minute. 8 "DBA" means decibels. 9 "HEPA" means High Efficiency Particulate Air. 10 "HVAC" means Heating, Ventilation, and Air Conditioning. 11 "Mechanical engineer" means a professional engineer 12 licensed as a mechanical engineer by the Department of 13 Financial and Professional Regulation who has professional 14 experience with heating, ventilation, and air conditioning 15 systems. 16 "PM2.5" means particulate matter at 2.5 microns or less. 17 "PM10" means particulate matter at 10 microns or less. 18 "PPM" means parts per million. 19 "UV" means ultraviolet. 20 "Skilled and trained construction workforce" means a 21 workforce in which at least 40% of the workers are graduates of 22 or registered in and attending an accredited apprenticeship 23 program registered with the United States Department of Labor. 24 (b) The State Board of Education shall require all school 25 districts to supply all active classroom instructors, all 26 school staff and administration, and district leadership with HB1923 - 2 - LRB104 09447 LNS 19507 b HB1923- 3 -LRB104 09447 LNS 19507 b HB1923 - 3 - LRB104 09447 LNS 19507 b HB1923 - 3 - LRB104 09447 LNS 19507 b 1 an educational document, in a PDF and a physical format, 2 explaining, at a minimum, the values of good indoor air 3 quality, including peer-reviewed research demonstrating the 4 effects of poor and good indoor air quality, an explanation of 5 the airborne transmission of pathogens and other airborne 6 substances, a basic explanation of air changes per hour and 7 the relation to outdoor air and filtered air, and best 8 practice recommendations for a portable air cleaner and an air 9 quality monitor, including guidance on the theory, function, 10 placement, and operation of the monitor. The document shall be 11 developed with the assistance of a major independent and 12 nonpartisan approved organization recognized as a subject 13 matter expert in the field of air quality, such as a local 14 ASHRAE chapter. This document shall be created and supplied to 15 schools within 3 months after the effective date of this 16 amendatory Act of the 104th General Assembly. 17 (c) Subject to appropriation, the State Board shall 18 require all school districts to ensure that all active 19 classrooms that are not mechanically ventilated have at least 20 2 properly functioning windows, or one window in situations 21 where only one is present, that can open and can safely stay 22 open. School districts must be in compliance with this Section 23 within 6 months after the effective date of this amendatory 24 Act of the 104th General Assembly. 25 (d) Subject to appropriation, the State Board shall 26 require all school districts to ensure that all active HB1923 - 3 - LRB104 09447 LNS 19507 b HB1923- 4 -LRB104 09447 LNS 19507 b HB1923 - 4 - LRB104 09447 LNS 19507 b HB1923 - 4 - LRB104 09447 LNS 19507 b 1 classrooms are equipped with an air quality monitor that: 2 (1) is installed and operating within one month 3 following delivery; 4 (2) remains in the active classroom until classroom is 5 no longer an active classroom; 6 (3) is an air quality monitor that has been determined 7 by the State Board to be suitable, by the State Board 8 seeking out and obtaining a written statement noting that 9 the capabilities of the monitor in question are sufficient 10 to serve the purposes described in this Section, from a 11 major independent and nonpartisan organization recognized 12 as a subject matter expert in the field of air quality, 13 such as a local ASHRAE chapter. The written statement 14 shall minimally address suitability of: the selected 15 monitor's measurement technology, calibration 16 specifications, and manufacturer stated accuracies and 17 ranges; 18 (4) measures, at a minimum, carbon dioxide and PM2.5. 19 Selected monitors are recommended to also measure carbon 20 monoxide, PM10, volatile organic compounds, temperature, 21 and humidity; 22 (5) displays, at a minimum, carbon dioxide readings 23 through a display on the device or other means, such as on 24 a computer or cellular phone application; 25 (6) is corded and does not rely solely on batteries 26 for power; HB1923 - 4 - LRB104 09447 LNS 19507 b HB1923- 5 -LRB104 09447 LNS 19507 b HB1923 - 5 - LRB104 09447 LNS 19507 b HB1923 - 5 - LRB104 09447 LNS 19507 b 1 (7) is to be located between 3 and 6 feet above the 2 floor and at least 5 feet away from doors, operable 3 windows, or human occupants; 4 (8) connects via a wired or wireless connection to 5 other applicable monitors so as to permit recording of 6 data which includes at least the maximum carbon dioxide 7 concentrations for a period of at least one year, as well 8 as remote access to current air quality readings through a 9 computer or cellular phone application; and 10 (9) provides notification through a visual indicator 11 on the monitor, or other alert such as electronic mail, 12 text message or cellular phone application, when the 13 carbon dioxide levels in the classroom have exceeded a PPM 14 level recommended to the State Board in writing by a major 15 independent and nonpartisan organization recognized as a 16 subject matter expert in the field of air quality, such as 17 a local ASHRAE chapter. 18 Each school shall record all incidents where the 19 recommended PPM level was breached in a classroom and maintain 20 those records for at least 5 years. 21 Any supplied air quality monitor under this subsection may 22 not be shared between active classrooms. 23 If devices matching the criteria described in this 24 subsection are unavailable, the State Board shall contact a 25 major independent and nonpartisan organization recognized as a 26 subject matter expert in the field of air quality, such as a HB1923 - 5 - LRB104 09447 LNS 19507 b HB1923- 6 -LRB104 09447 LNS 19507 b HB1923 - 6 - LRB104 09447 LNS 19507 b HB1923 - 6 - LRB104 09447 LNS 19507 b 1 local ASHRAE chapter, and request assistance in determining 2 suitable selection criteria for an air quality monitor that 3 will sufficiently accomplish the goals of: providing teachers 4 and staff with air quality information to facilitate managing 5 indoor air quality; storing a sufficient type and duration of 6 data to facilitate ventilation assessments; provide remote 7 access to current air quality readings; and generally align 8 with contemporary best practice recommendations. 9 (e) Subject to appropriation, the State Board shall 10 require all school districts to ensure that all active 11 classrooms are equipped with a portable air cleaner that: 12 (1) is installed and operating within one month 13 following delivery; 14 (2) remains in the active classroom until classroom is 15 no longer an active classroom; 16 (3) is a portable air cleaner the State Board has 17 determined to be suitable, by seeking out and obtaining a 18 written statement noting that the capabilities of the 19 portable air cleaner in question are sufficient to serve 20 the purposes described in this Section, from a major 21 independent and nonpartisan organization recognized as a 22 subject matter expert in the field of air quality, such as 23 a local ASHRAE chapter; 24 (4) utilizes a HEPA filter that captures 99.97% of 0.3 25 micron particles. A filter stated to be equal to or 26 superior to a HEPA may not be used; HB1923 - 6 - LRB104 09447 LNS 19507 b HB1923- 7 -LRB104 09447 LNS 19507 b HB1923 - 7 - LRB104 09447 LNS 19507 b HB1923 - 7 - LRB104 09447 LNS 19507 b 1 (5) utilizes or has the option of utilizing a 2 secondary filter for gaseous pollutants, such as activated 3 carbon; 4 (6) only utilizes HEPA filtration, as opposed to 5 additional technologies such as ionization, chemical 6 processes, and UV. If such additional technologies are 7 present in the selected portable air cleaner they must be 8 able to be disabled; 9 (7) Produces 500 or more CFM as measured by CADR or 10 similar metric of filtered airflow; 11 (8) Produces 500 or more CFM of filtered airflow at 12 under 45 dBA of noise, according to manufacturer supplied 13 dBA test results measured at one meter in front of the 14 portable air cleaner; 15 (9) is Underwriters Laboratories certified or 16 certified to Underwriters Laboratories standards; 17 (10) has a manufacturer's warranty of at least one 18 year; 19 (11) shall be continuously operated during room 20 occupancy on at least low speed; 21 (12) shall be maintained according to manufacturer's 22 recommendation, written approval shall be obtained from 23 the manufacturer if deviation from standard 24 recommendations is being considered; and 25 (13) shall be replaced within one month if it becomes 26 inoperable. HB1923 - 7 - LRB104 09447 LNS 19507 b HB1923- 8 -LRB104 09447 LNS 19507 b HB1923 - 8 - LRB104 09447 LNS 19507 b HB1923 - 8 - LRB104 09447 LNS 19507 b 1 If a single portable air cleaner on the market does not 2 meet the parameters of this subsection, then 2 or more 3 portable air cleaners per active classroom may be substituted 4 if they produce a combined 500 or more CFM, as measured by CADR 5 or similar metric, of filtered airflow at under 45 combined 6 dBA of noise according to manufacturer supplied dBA test 7 results measured at one meter in front of the portable air 8 cleaner. 9 Any supplied portable air cleaner may not be shared 10 between active classrooms. 11 (f) Subject to appropriation, the State Board shall 12 require all school districts to supply each school with 5 13 additional portable air cleaners and 5 additional air quality 14 monitors that meet the requirements of subsections (d) and (e) 15 to be used in school health offices, libraries, cafeterias, 16 and other similar spaces. 17 (g) Subject to appropriation, the State Board shall 18 require all school districts to undertake a ventilation 19 verification assessment of all mechanical ventilation systems 20 in the school district performed by a certified assessor or a 21 mechanical engineer and shall be based on physical 22 measurements made during the assessment. If an assessment is 23 performed by a certified assessor, the assessment report shall 24 be reviewed by a mechanical engineer. The ventilation 25 verification assessment shall verify whether the existing 26 mechanical ventilation system is operating in accordance with HB1923 - 8 - LRB104 09447 LNS 19507 b HB1923- 9 -LRB104 09447 LNS 19507 b HB1923 - 9 - LRB104 09447 LNS 19507 b HB1923 - 9 - LRB104 09447 LNS 19507 b 1 design parameters and meets the requirements of any applicable 2 building codes. The ventilation verification assessment for a 3 heating, ventilation, and air conditioning system shall 4 include: 5 (1) testing for maximum filter efficiency; 6 (2) measurements of outside air rate; 7 (3) verification of operation of ventilation 8 components; 9 (4) measurement of all air distribution inlets and 10 outlets; 11 (5) verification of unit operation and that required 12 maintenance has been performed; 13 (6) verification of control sequences; 14 (7) verification or installation of carbon dioxide 15 sensors; and 16 (8) collection of field data for the installation of 17 mechanical ventilation if none exists. 18 (h) The verification assessment report from the mechanical 19 engineer shall include appropriate corrective actions needed 20 for the mechanical ventilation system or the heating, 21 ventilation, and air conditioning infrastructure, including 22 installation of appropriate filters, installation of carbon 23 dioxide sensors and additional maintenance, repairs, upgrades 24 or replacement. 25 (i) The school district shall have a ventilation 26 verification assessment performed on all mechanical HB1923 - 9 - LRB104 09447 LNS 19507 b HB1923- 10 -LRB104 09447 LNS 19507 b HB1923 - 10 - LRB104 09447 LNS 19507 b HB1923 - 10 - LRB104 09447 LNS 19507 b HB1923 - 10 - LRB104 09447 LNS 19507 b