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The potential benefit of air purifiers in the rooms of residents in Australian Aged Care Facilities

Identifying the effect of air purifiers on the incidence of Acute Respiratory Infections (ARIs) among residents in Australian Residential Aged Care Facilities (RACFs): A Randomised Control Trial

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12623000347662
Acronym
CAFACS (Clean Air For Aged Care Study)
Enrollment
135
Registered
2023-04-03
Start date
2023-03-06
Completion date
2023-04-04
Last updated
2024-04-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

.It is now widely accepted that respiratory viruses are transmitted via aerosols. This study will use air purifiers with HEPA filters in the rooms of residents of RACFs. It intends to examine the effect of air purification through filtration on the incidence of acute respiratory infections in RACFs. It will help to identify whether air purifiers could be used to decrease the burden of acute respiratory infections in residential aged care settings.

Interventions

The project is a clinical trial using air purifiers. The air purifier with HEPA filter is the intervention for the trial. -The air purifier with a High-Efficiency Particulate Absorbing (HEPA) filter will be placed in the resident's room and turned on continuously for 24 hours. The participants will be exposed to the effect of air filtration for a minimum of 8 hours per day for 3 months. -The intervention will be administered by Ph.D. student -The adherence to the intervention will be monitored

The project is a clinical trial using air purifiers. The air purifier with HEPA filter is the intervention for the trial. -The air purifier with a High-Efficiency Particulate Absorbing (HEPA) filter will be placed in the resident's room and turned on continuously for 24 hours. The participants will be exposed to the effect of air filtration for a minimum of 8 hours per day for 3 months. -The intervention will be administered by Ph.D. student -The adherence to the intervention will be monitored by utilising a cross-sectional observational audit. The nominated staff will record any breakout period with a long gap in participants’ exposure to air purifiers. - 1 week washout period will be applied between 2 crossover periods. As the mean incubation and infectious period for common respiratory viral pathogens are less than 7 days, a 1-week washout period will be sufficient within this study. Where a person acquires an infection during a phase, the infection will be attributed to that phase (noting that we are measuring infection as a dichotomous variable). Because our measurement of infection is a dichotomous variable, symptoms must resolve before a new infection can be counted.

Sponsors

University of Newcastle
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Crossover
Primary purpose
Prevention
Masking
Blinded (masking used) (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

At the time of project commencement; the participants must: o be a permanent resident of an Australian Residential Aged Care Facility enrolled in the study, o reside in a private room (i.e., not a shared room). o not be on palliative Trajectory-C comfort care.

Exclusion criteria

At the time of project commencement, particpants: o are respite residents. o reside in shared rooms, o are on palliative Trajectory-C comfort care, o are unable to provide consent and require public guardian approval.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 5, 2026