Air Purifiers in Classrooms for Infection Control - a Pilot Study
NCT ID: NCT06374316
Last Updated: 2024-04-18
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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ACTIVE_NOT_RECRUITING
NA
6 participants
INTERVENTIONAL
2024-01-15
2024-05-01
Brief Summary
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Detailed Description
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The results will lay the groundwork for larger-scale trials that could form the basis of knowledge for decision-makers on whether the use of air purifiers should be part of the strategy to limit infections in classrooms while avoiding school closures during future pandemics.
The pilot study consists of two parts. The first part will last six weeks, and focus on the feasibility and acceptability among teachers and students. It will describe and compare two arms - ceiling-mounted (arm 1) and portable (arm 2) air purifiers. The second part lasts nine weeks, and will evaluate the direct effect of air purifiers on air quality. It will compare ceiling-mounted, and portable devices and no purifier(arm 3). The study will involve multiple schools, with a total of six schools contributing eight classrooms. Arm 1 will have two schools and arm 2 will have three schools, each school contributing with one classroom. Arm 3 will have one school, contributing with three classrooms. The classrooms will preferably belong to 7th grade students, but 6th and 5th grade student classrooms will also be accepted, based on the schools preferences. Data collection includes interviews and questionnaires from teachers and students, observations, as well as absenteeism data and air quality measurements.
Conditions
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Study Design
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NON_RANDOMIZED
PARALLEL
For this arm, we will randomize the three classrooms to each of three weekly programs for the air purifiers;
Program 1) Week 1, 4, and 7: Ceiling-mounted ON, Week 2, 5, and 8: No purifier on, Week 3, 6, and 9: Portable ON. Program 2) Week 1, 4, and 7: Portable ON, Week 2, 5, and 8: Ceiling-mounted ON, Week 3, 6, and 9: No purifier on. Program 3) Week 1, 4, and 7: No purifier on Week 2, 5, and 8: Portable ON, Week 3, 6, and 9: Ceiling-mounted ON.
Each classroom will be assigned a computer-generated random number and will based on the ascending order of the random numbers be allocated to the three predetermined sequences of programs.
OTHER
NONE
Study Groups
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Ceiling-Mounted Air Purifiers
Classrooms in this arm will have ceiling-mounted air purifiers installed. Air quality will be monitored throughout the study period.
Ceiling-Mounted Air Purifiers
The devices will be turned on every working day except Tuesdays. Air purifiers will be set at levels perceived as acceptable by both teachers and students during operational hours.
Portable Air Purifiers
Classrooms in this arm will have portable air purifiers installed. Air quality will be monitored throughout the study period.
Portable Air Purifiers
The devices will be turned on every working day except Tuesdays. Air purifiers will be set at levels perceived as acceptable by both teachers and students during operational hours.
Both Portable and Ceiling-Mounted Air Purifiers
Classrooms in this arms will have both portable and ceiling-mounted air purifiers installed. The rooms will alternate weekly between having no air purifiers on, or only ceiling-mounted air purifier on, or only portable air purifier on.
Air quality will be monitored throughout the study period.
Portable or Ceiling Mounted Air Purifiers
The Ceiling-Mounted and Portable devices will alternate weekly between being activated and deactivated in the three classrooms. Each classroom will also have three weeks with no purifier activated.This alternating pattern aims to assess the impact of the various air purifiers on air quality. Air purifiers will be set at levels perceived as acceptable by both teachers and students during operational hours.
Interventions
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Ceiling-Mounted Air Purifiers
The devices will be turned on every working day except Tuesdays. Air purifiers will be set at levels perceived as acceptable by both teachers and students during operational hours.
Portable Air Purifiers
The devices will be turned on every working day except Tuesdays. Air purifiers will be set at levels perceived as acceptable by both teachers and students during operational hours.
Portable or Ceiling Mounted Air Purifiers
The Ceiling-Mounted and Portable devices will alternate weekly between being activated and deactivated in the three classrooms. Each classroom will also have three weeks with no purifier activated.This alternating pattern aims to assess the impact of the various air purifiers on air quality. Air purifiers will be set at levels perceived as acceptable by both teachers and students during operational hours.
Eligibility Criteria
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Inclusion Criteria
* Having at least 15 students in the relevant classroom.
* Having three classrooms at the same floor with sufficient floor space to accommodate at least two portable air purifiers AND with the infrastructure for the installation of a ceiling-mounted air purifier.
* The relevant three classrooms should be slightly comparable with regards to use and air quality. The air quality, as perceived by users, should generally be rated as moderate to poor. which should be medium to poor.
* Having a classroom with installed air purifier through the study as their primary classroom.
* Informed consent from both legal guardians.
* Teaching in the classroom with installed air purifiers at least a few hours per week.
* Providing informed consent.
ALL
No
Sponsors
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Norwegian Institute of Public Health
OTHER_GOV
SINTEF Health Research
OTHER
Responsible Party
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Locations
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Norwegian Institute of Public Health
Oslo, , Norway
Countries
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Related Links
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Study Protocol
Other Identifiers
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2302888
Identifier Type: -
Identifier Source: org_study_id
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