protocolSection identificationModule nctId: NCT06374316, orgStudyIdInfo id: 2302888, briefTitle: Air Purifiers in Classrooms for Infection Control - a Pilot Study, statusModule overallStatus: ACTIVE_NOT_RECRUITING, startDateStruct date: 2024-01-15, primaryCompletionDateStruct date: 2024-05-01, completionDateStruct date: 2024-05-01, studyFirstPostDateStruct date: 2024-04-18, lastUpdatePostDateStruct date: 2024-04-18, sponsorCollaboratorsModule leadSponsor name: Norwegian Institute of Public Health, class: OTHER_GOV, collaborators name: SINTEF Health Research, descriptionModule briefSummary: This study aims to investigate the acceptability and feasibility of deploying air purifiers equipped with HEPA (high-efficiency particulate air) filters in classrooms, to study air purifiers as an infection control measure. It will also evaluate the direct effect of air purifiers on air quality, comparing ceiling-mounted purifiers, portable purifiers and no purifier., conditionsModule conditions: Feasibility, conditions: Acceptability, designModule studyType: INTERVENTIONAL, phases: NA, designInfo allocation: NON_RANDOMIZED, interventionModel: PARALLEL, interventionModelDescription: We will select schools for participation in arm 1 and 2, respectively, based on the feasibility of installing ceiling-mounted and placing portable air purifiers in each relevant classroom. In arm 3, all three classrooms will be equipped with both ceiling-mounted and portable air purifiers, as well as indoor air quality sensors.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., primaryPurpose: OTHER, maskingInfo masking: NONE, enrollmentInfo count: 6, type: ACTUAL, armsInterventionsModule interventions name: Ceiling-Mounted Air Purifiers, interventions name: Portable Air Purifiers, interventions name: Portable or Ceiling Mounted Air Purifiers, outcomesModule primaryOutcomes measure: Effectiveness of air purifiers versus no air purifier on improving air quality in classrooms., primaryOutcomes measure: Effectiveness of ceiling mounted versus portable air purifier on improving air quality in classrooms., primaryOutcomes measure: Acceptability of having Air Purifiers in Classrooms, primaryOutcomes measure: Untoward events when installing air purifiers in classrooms, primaryOutcomes measure: Untoward events when running air purifiers in classrooms, primaryOutcomes measure: How student absence data can be collected from existing school registration systems., secondaryOutcomes measure: Response rate of class teachers to the study surveys., secondaryOutcomes measure: Response rate of students/their guardians to study surveys., secondaryOutcomes measure: Proportion of absence due to respiratory disease., secondaryOutcomes measure: Absence frequency among students, eligibilityModule sex: ALL, stdAges: CHILD, stdAges: ADULT, stdAges: OLDER_ADULT, contactsLocationsModule locations facility: Norwegian Institute of Public Health, city: Oslo, country: Norway, geoPoint lat: 59.91273, lon: 10.74609, hasResults: False