Indoor Air Quality Equipment and Services
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Indoor Air Quality Equipment and Services
Equipment and services to improve indoor air quality, such as temporary or portable air conditioning units, humidifiers, dehumidifiers, High Efficiency Particulate Air filters, and carpet cleaning may be covered as SSBCI. Plans may also include installation and servicing of equipment as part of the benefit.
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Linking Intervention and Impact
Xia X, Chan KH, Kwok T, Wu S, Man CL, Ho KF.
2024| Environmental Research| PubMed| 38253196| 10.1016/j.envres.2024.118284
This study compared true-air purification to sham-air purification in indoor air purifiers.
Outcome type: Favorable
The study found evidence of cardiovascular benefits of long-term indoor air purifiers (IAPs) use, particularly on diastolic blood pressure.
Randomized Controlled Trial
Peer Reviewed
Linking Intervention and Impact
Jutkowitz E, Shewmaker P, Reddy A, Braun JM, Baier RR.
2023| JAMA| PubMed| 37385591| 10.1016/j.jamda.2023.05.026
Ultraviolet air purification systems were installed in a nursing home.
Outcome type: Favorable
The study found that intervening on air quality may have a wide impact without placing significant burden on individuals to modify their behavior.
Other
Peer Reviewed
Linking Gap and Impact
Cheng Y, Kong D, Ci M, Guan Y, Luo C, Zhang X, Gao F, Li M, Deng G.
2023| International Journal of Molecular Science| PubMed| 36614301| 10.3390/ijms24010853
Outcome type: Favorable
The study asserts that air pollution is one of the exogenous sources of reactive oxygen and nitrogen species. Ambient airborne particulate matter (PM) irritates the inner airways and triggers immunological responses, which are all related to the physiopathology of chronic respiratory diseases such as cancer.
Other
Peer Reviewed
Linking Intervention and Impact
Chen YC, Hsieh PI, Chen JK, Kuo E, Yu HL, Chiou JM, Chen JH.
2023| Environmental Research| PubMed| 36791838| 10.1016/j.envres.2023.115483
The authors observed the variation in exposure to PM2.5, PM10, NO2, SO2, CO, and O3 between 2011-2019.
Outcome type: Favorable
The study found that tightening air quality standards may help prevent dementia.
Prospective Cohort Study
Peer Reviewed
Age > 65
Linking Intervention and Impact
Fazlzadeh M, Hassanvand MS, Nabizadeh R, Shamsipour M, Salarifar M, Naddafi K.
2022| Environmental Monitoring and Assessment| PubMed| 35925421| 10.1007/s10661-022-10255-w
Study examining the effect of air purifiers on the removal of pollutants in indoor air in a medical setting.
Outcome type: Favorable
The study found that using household air purifiers in rooms with smokers and non-smokers significantly reduces the non-carcinogenic risks of exposure to PM10 and PM2.5.
Other
Peer Reviewed
Linking Intervention and Impact
Nair AN, Anand P, George A, Mondal N.
2021| Environmental Research| PubMed| 35714688| 10.1016/j.envres.2022.113579
Numerous interventions to improve indoor air quality are evaluated in this review.
Outcome type: Favorable
The study found that environmental quality parameters such as humidity and temperature have shown considerable influence in reducing virus transmission in indoor spaces.
Systematic Review
Peer Reviewed
Linking Gap and Impact
Gilbey SE, Reid CM, Huxley RR, Soares MJ, Zhao Y, Rumchev KB.
2021| International Journal of Environmental Research and Public Health| PubMed| 35055806| 10.3390/ijerph19020981
Outcome type: Favorable
The study found that residential indoor VOCs exposure was adversely associated with some measures of central arterial stiffness.
Other
Peer Reviewed
Linking Gap and Impact
Rahman T, Faisal AM, Khanam T, Shekhar HU.
2020| Environmental Health Insights| PubMed| 32843838|  10.1177/1178630220938393
Outcome type: Favorable
The study found that textile plants were found to have significantly elevated levels of indoor environmental pollutants compared with those in the control area, and the textile workers were significantly exposed to oxidative stresses compared with the control subjects.
Other
Peer Reviewed
Linking Gap and Impact
Wolkoff P.
2018| International Journal of Hygiene and Environmental Health| PubMed| 29398406| 10.1016/j.ijheh.2018.01.015
Outcome type: Favorable
Elevation of the indoor air humidity may positively impact perceived IAQ, eye symptomatology, and possibly work performance in the office environment, and elevated humidified indoor air appears to reduce nasal symptoms in patients suffering from obstructive apnea syndrome.
Other
Peer Reviewed
Linking Intervention and Impact
Guerra LP, Andrade LMV, Joner DC, Strozzi D.
2021| Einstein (Sao Paolo)| PubMed|  34190846| 10.31744/einstein_journal/2021AO5484
Study examining if an air humidifer, bucket of water, or wet towel are most effective in improving the humidity of air in times of drought or low moisture.
Outcome type: Favorable
The study found that 1m of distance is more efficient in increasing and/or maintaining air humidity, inducing improvements in the populations’ health.
Randomized Controlled Trial
Peer Reviewed
Linking Intervention and Impact
Wang Y, Zhao Y, Xue L, Wu S, Wang B, Li G, Huang J, Guo X.
2021| Indoor Air| PubMed| 33682970|  10.1111/ina.12815
Participants were randomly assigned to the use of real or sham high-efficiency particulate air filter (HEPA) for a week and changed the status after a washout period.
Outcome type: Favorable
The study found a protective effect of indoor HEPA air purifiers on cardiorespiratory health of young healthy adults reflected by the decreased blood pressure, respiratory inflammation, and systematic oxidative stress and improved lung function.
Randomized Controlled Trial
Peer Reviewed
Linking Intervention and Impact
Li P, Koziel JA, Macedo N, Zimmerman JJ, Wrzesinski D, Sobotka E, Balderas M, Walz WB, Paris RV, Lee M, Liu D, Yedilbayev B, Ramirez BC, Jenks WS.
2023| International Journal of Environmental Research and Public Health| PubMed| 36498208| 10.3390/ijerph192316135
This experiment used a particulate matter (PM) air filtration prototype by adding UV-C (germicidal) light.
Outcome type: Favorable
The study found that the combination of filtration and UV-C treatment provided 'double-barrier' assurance for air purification and lowered the risk of spreading infectious micro-organisms.
Randomized Controlled Trial
Peer Reviewed
Linking Gap and Impact
Wolkoff P, Azuma K, Carrer P.
2021| International Journal of Hygiene and Environmental Health| PubMed| 33601136| 10.1016/j.ijheh.2021.113709
Outcome type: Favorable
The study found that indoor air humidity causes vulnerable eyes and airways from desiccation and less efficient mucociliary clearance, causing elevation the most common mucous membrane-related symptoms, like dry and tired eyes, which deteriorates the work performance.
Other
Peer Reviewed
Linking Gap and Impact
Sun L, Wallace LA.
2021| Journal of Air and Waste Management Association| PubMed| 32970538| 10.1080/10962247.2020.1823525
Outcome type: Favorable
Cooking contributed to PM2.5 exposure in residential settings. The inadequate use of ventilation during cooking highlights the need for educational programs on cooking exposures and ventilation strategies.
Other
Peer Reviewed
Linking Intervention and Impact
Dorina Gabriela Karottki, Michal Spilak, Marie Frederiksen, Lars Gunnarsen, Elvira Vaclavik Brauner, Barbara Kolarik, Zorana Jovanovic Andersen, Torben Sigsgaard, Lars Barregard, Bo Strandberg, Gerd Sallsten, Peter Møller & Steffen Loft
2013| BMC Environmental Health| PubMed| 24373585| https://doi.org/10.1186/1476-069X-12-116
High-efficiency particle air filter was used in older adults' living rooms and bedrooms.
Outcome type: Favorable
The particle filters reduced the median concentration of PM2.5
Randomized Controlled Trial
Peer Reviewed
Age > 65
Linking Intervention and Impact
Sun Y, Huang J, Zhao Y, Xue L, Li H, Liu Q, Cao H, Peng W, Guo C, Xie Y, Liu X, Li B, Liu K, Wu S, Zhang L.
2020| Journal of Hazardous Materials| PubMed| 32516725| 10.1016/j.jhazmat.2020.122817
The experiment evaluated indoor air filtration was conducted among 29 healthy young adults in Beijing, China. Each episode covered a typical air pollution wave, and cytokines and DNAm of genes were measured at 3 time points: pre-smog, during smog, and post-smog.
Outcome type: Favorable
The study found that indoor air filtration was significantly associated with the decreases in 9 cytokines, demonstrating that indoor air filtration might attenuate the adverse effects of PM2.5 exposure through changing cytokines and DNAm.
Randomized Controlled Trial
Peer Reviewed
Linking Intervention and Impact
Li L, Zhang L, Mo JH, Li YY, Xia JY, Bai XB, Xie PF, Liang JY, Yang ZF, Chen QY.
2020| Clinical Otolaryngology| PubMed| 32058675| 10.1111/coa.13514
The study the clinical efficacy of indoor air filtration during the Artemisia pollen scattering season in Yulin City in Shanxi Province, China.
Outcome type: Favorable
The study found significant differences in rhinitis symptoms between the groups who used the active versus the inactive air purifier, demonstrating the health benefits of particle filtration.
Randomized Controlled Trial
Peer Reviewed
Linking Intervention and Impact
Ereth MH, Hess DH, Driscoll A, Hernandez M, Stamatatos F.
2020| American Journal of Infection Control| PubMed| 31911069| 10.1016/j.ajic.2019.11.017
A particle control technology was tested to determine its effectiveness at reducing indoor air contamination.
Outcome type: Favorable
The study found that emerging particle control technology could significantly reduce indoor air contamination and associated infections in operating rooms, hospital isolation rooms, and intensive care settings, as well as reduce inflammatory responses to airborne particles.
Other
Peer Reviewed
Linking Gap and Impact
Veysi R, Heibati B, Jahangiri M, Kumar P, Latif MT, Karimi A.
2019| Environmental Monitoring and Assessment| PubMed| 30612195| 10.1007/s10661-018-7182-5
Outcome type: Favorable
The accumulation of indoor pollutants in the hospital environment revealed the failure of hospital ventilation systems. Laboratory staff members were more at risk of respiratory symptoms compared to other occupational groups in the hospital. Improved ventilation is recommended.
Other
Peer Reviewed
Linking Intervention and Impact
Morishita M, Adar SD, D'Souza J, Ziemba RA, Bard RL, Spino C, Brook RD.
2018| JAMA Internal Medicine| PubMed| 30208394| 10.1001/jamainternmed.2018.3308
Study examining the effectiveness of air filtration in reducing personal exposures to pollutants and mitigating cardiovascular health effects among older adults in an urban setting.
Outcome type: Favorable
The study found that the use of these relatively inexpensive systems is potentially cardioprotective against PM2.5 exposures.
Randomized Controlled Trial
Peer Reviewed
Linking Intervention and Impact
Reddy AL, Gomez M, Dixon SL.
2017| Journal of Public Health Management Practice| PubMed| 28121773| 10.1097/PHH.0000000000000529
The study evaluated the impact of a healthy homes program on improving housing hazards that affect health. The NY State Health Neighborhoods program is a healthy homes program in which participating homes undergo a visual assessment to identify potential environmental health and safety hazards, and interventions (such as education, referrals, and products) are provided to residents to address any hazards identified during the visit.
Outcome type: Favorable
Homes with the intervention saw significant improvements in the conditions assessed for tobacco control, fire safety, lead poisoning prevention, indoor air quality, and other hazards (including pests and mold).
Other
Peer Reviewed
Linking Intervention and Impact
Kim JH, Hyong IH.
2015| Journal of Physical Therapy Science| PubMed|  PMC4433978| 10.1589/jpts.27.1063
The study examined changes in pulmonary functions at rest after use of a humidifier. The experimental setting was a laboratory with a fixed temperature and relative humidity was adjusted to varying degrees using a humidifier.
Outcome type: Favorable
The study found that higher humidity levels should be maintained using humidifiers.
Other
Peer Reviewed
Linking Gap and Impact
Claudio L, Rivera GA, Ramirez OF.
2015| Journal of School Health| PubMed| 27122144| 10.1111/josh.12398
Outcome type: Favorable
The study found that asthma, respiratory infections, colds, eye irritation, nasal congestion, and sore throat were associated with the classroom environment; results indicate that the school environment could affect teachers' respiratory health.
Other
Peer Reviewed
Linking Intervention and Impact
Guo M, Du C, Li B, Yao R, Tang Y, Jiang Y, Liu H, Su H, Zhou Y, Wang L, Yang X, Zhou M, Yu W.
2021| Science of the Total Environment| PubMed| 34325134| 10.1016/j.scitotenv.2021.149248
Randomized controlled trial in which long-term care patient rooms received a high-efficiency particulate air filter air purifier and a placebo air purifier for two days.
Outcome type: Favorable
The study found that air filtration was associated with significantly decreased biomarkers of inflammation, but not those of oxidative stress and lung function. Air filtration can improve the health of the elderly; air purifiers may be a public health measure to improve circulatory and cardiopulmonary health among older people.
Randomized Controlled Trial
Peer Reviewed
Linking Intervention and Impact
Hamilton I, Milner J, Chalabi Z, Das P, Jones B, Shrubsole C, Davies M, Wilkinson P.
2015| BMJ Open| PubMed| 25916488| 10.1136/bmjopen-2014-007298
The experiment modeled three scenarios measuring pollution levels using varying levels of fabric and ventilation retrofits installed within building.
Outcome type: Favorable
The study found that if properly used with ventilation, energy efficiency retrofits in housing can improve health by reducing exposure to cold and air pollutants.
Other
Peer Reviewed
Linking Intervention and Impact
Willand N, Ridley I, Maller C.
2015| Social Science & Medicine| PubMed|  25687402| 10.1016/j.socscimed.2015.02.005
Residential energy efficiency interventions (REEIs) were reviewed in this study.
Outcome type: Favorable
The review revealed that REEIs improved winter warmth and lowered relative humidity with benefits for cardiovascular and respiratory health.
Systematic Review
Peer Reviewed
Linking Intervention and Impact
Chan WR, Parthasarathy S, Fisk WJ, McKone TE.
2016| Indoor Air| PubMed|
Changes in exposure to VOCs and PM2.5 were predicted if ventilation rate were to increase or decrease by a factor of two, and if higher efficiency air filters were used.
Outcome type: Neutral
The study suggests that increasing ventilation alone is ineffective at reducing chronic health burdens. The use of particle filtration, should also be considered.
Other
Peer Reviewed