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The purpose of study was to examine the relative importance of servicescape, identify the optimal combination, and predict the market share in fitness centers. We conducted a conjoint analysis on users of fitness centers located in Seoul. As a primary result, it was found that the spatial layout, particularly 'sufficient exercise space', was considered most important. Secondly, cleanliness, specifically 'well-maintained fitness equipment', was deemed important following spatial layout. Next, users emphasized the importance of ambient conditions, especially 'well-managed heating, ventilation, and air-conditioning'. However, aesthetics, specifically 'Attractive interior design', was not considered as significant compared to other attributes. The optimal combination of servicescape was identified to be 'sufficient exercise space, well-maintained fitness equipment, and an attractive interior design within a well-managed heating, ventilation, and air conditioning'. Finally, the combination of 'sufficient exercise space, attractive interior design, well-managed heating, ventilation and air-conditioning, and well-maintained fitness equipment' was associated with the highest market share. From an academic perspective, this study holds significance in reaffirming the meaning and impact of servicescape on consumers. Additionally, it provides practical implications that assist in determining the direction for sustainable facility improvement and management of the fitness center.

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Background: Few studies have investigated the relationship between the food and physical activity environment and odds of gestational diabetes mellitus (GDM). This study quantifies the association between densities of several types of food establishments and fitness centers with the odds of having GDM. Methods: The density of supermarkets, fast-food restaurants, full-service restaurants, convenience stores and fitness centers at 500, 1000 and 1500 m (m) buffers was counted at residential addresses of 68,779 pregnant individuals from Eastern Massachusetts during 2000-2016. The 'healthy food index' assessed the relative availability of healthy (supermarkets) vs unhealthy (fast-food restaurants, convenience stores) food retailers. Multivariable logistic regression quantified the cross-sectional association between exposure variables and the odds of having GDM, adjusting for individual and area-level characteristics. Effect modification by area-level socioeconomic status (SES) was assessed. Findings: In fully adjusted models, pregnant individuals living in the highest density tertile of fast-food restaurants had higher GDM odds compared to those living in the lowest density tertile (500 m: odds ratio (OR):1.17 95% CI: [1.04, 1.31]; 1000 m: 1.33 95% CI: [1.15, 1.53]); 1500 m: 1.18 95% CI: [1.01, 1.38]). Greater residential density of supermarkets was associated with lower odds of GDM (1000 m: 0.86 95% CI: [0.74, 0.99]; 1500 m: 0.86 95% CI: [0.72, 1.01]). Similarly, living in the highest fitness center density tertile was associated with decreased GDM odds (500 m:0.87 95% CI: [0.76, 0.99]; 1500 m: 0.89 95% CI: [0.79, 1.01]). There was no evidence of effect modification by SES and no association found between the healthy food index and GDM odds. Interpretation: In Eastern Massachusetts, living near a greater density of fast-food establishments was associated with higher GDM odds. Greater residential access to supermarkets and fitness centers was associated with lower the odds of having GDM. Funding: NIH.

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The sustainability of fitness centers depends on two factors: member recruitment and retention, which is why these factors have received attention in recent decades. Temporal trends in fitness center membership purchase channels from 2016 to 2022 and motivation for exercise in 2022 in the Slovenian general population were investigated. The sample included 3419 participants, including 3131 participants (age 31.03 ± 11.31 years, 1430 females) and 288 participants (age 29.39 ± 10.43 years, 110 females) for the first and second objectives, respectively. Data were assessed using a web-based recruitment questionnaire and the EMI-2 motivation questionnaire. Traditional advertising strategies such as radio and flyers are the least effective (only 0.9% of memberships in 2022), while more sophisticated advertising strategies such as the internet and social media are becoming increasingly important in the advertising world (26.6% of memberships in 2022). On the other hand, word of mouth is the most influential method, attracting 51.3% of new members. Females, older members, and Eastern Slovenians were more motivated to exercise by health and esthetic motives, and males and younger members by challenge and competition. Fitness center management should focus on providing the best possible quality of service, tailoring it to the age, gender, and motivation of customers.

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Sports services have become an important enclave for our society. Due to its complete sports offer, customers can perform physical activity that helps them to improve their health and well-being. In fitness centers, managers try to know what their customers are looking for in order to create more personalized experiences, as well as to improve their health. This study seeks to understand the influence that sports frequency has on the future behavior of users of a sports center, using two complementary methodologies. A sample of 383 users of a private sports center was used. The two complementary methodologies used were linear models and comparative qualitative analysis, based on the combination of sets. The results show how sports frequency influences the process of creating users' future behaviors. Considering that none of the variables are necessary, it is observed that perceived value has a significant influence on users' future behaviors. The use of two complementary methodologies provides a more complete understanding, which helps sports managers to plan and manage effectively to ensure user satisfaction and loyalty. In addition, facilities can incentivize customers through loyalty programs and promotions to maintain their engagement, as well as healthy styles to encourage service recommendations.

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Purpose: Drawing on conservation of resource theory, social cognitive theory and person-environment fit theory, this study aims to investigate the impact of servant leadership and self-efficacy on service quality in fitness centers. Patients and Methods: Cross-sectional data came from 771 employees of fitness center. All participants completed the perceived servant leadership scale, self-efficacy scale and service quality scale. The polynomial regression and response surface analysis techniques were used to investigate the mediating influence and boundary conditions of self-efficacy. Results: Self-efficacy acts as a mediator between servant leadership and employee service quality, with servant leadership having a positive, substantial impact on both. Meanwhile, regarding the relationship, the level of service quality is inversely correlated with the degree to which servant leadership and employee self-efficacy are aligned. The smaller the degree of alignment, the lower the level of employee service quality. Conclusion: The findings of this study can help fitness centre practitioners better improve the service quality of employees through service-oriented servant leadership during the COVID-19 pandemic, thereby contributing to the development of the sports and service industries.

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Millennials of the 21st century tend to have an active daily life and practice more sports, spending more on health and fitness. Therefore, the present paper seeks to investigate the propensity of Millennials to recommend their preferred fitness center, depending on their psychological condition (i.e., introversion versus extraversion), which may lead to their tendency to practice and to their involvement and satisfaction with the fitness center. The authors deduce a conceptual model from the literature, which is further analyzed with data collected through an empirical investigation based on a face-to-face administered questionnaire. Data gathered from 2138 Millennials are investigated with the help of structural equation modeling using SmartPLS. The results show that a positive image of a fitness center stimulates the satisfaction of extravert and introvert consumers. Millennials have different personality types, such as extraversion and introversion, that influence their propensity to practice fitness and to recommend their favorite fitness center. It can be concluded that not only extraversion but also introversion influence consumers' satisfaction, positively impacting the consumer's intention to recommend their favorite fitness center to peers.

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This is a cross-sectional study that examined the association between fitness trainers' educational qualifications and experience, and the risk of their trainees' musculoskeletal pain. The study included 1177 trainees (aged 15−60 years) from 74 fitness centers in Bangladesh. Data were collected by using the Nordic musculoskeletal questionnaire, including potential confounders such as demographic factors (e.g., age, occupation), and training-related factors (e.g., workout knowledge, overweight lifting). Multiple logistic regression was performed for a binary outcome (pain­yes or no), and a generalized linear model was fitted for the ordinal outcome (pain­sites of the body). The trainers' lower experience (no or ≤1 year) was associated with higher odds of their trainees' musculoskeletal pain (OR: 2.53, 95% CI: 1.18−5.44) compared to trainers with >5 years of experience; however, no association was found between the trainers' education and the risk of their trainees' musculoskeletal pain, after controlling for potential confounders. Similarly, the trainees trained by trainers with lower experience had more than two-time the risk of having pain in different sites (IRR: 2.04, 95% CI: 1.50−2.79). The trainers' experience may play a pivotal role in the trainees' musculoskeletal pain. Further study is warranted in this regard.

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This study was designed to investigate the level and associations of physical activity, sedentary behavior, sleep, and dietary habits among Saudi women attending fitness centers in Riyadh. A descriptive cross-sectional study was carried out from 12 fitness centers in Riyadh, Saudi Arabia. A total of 460 participants answered a two-part survey self-administered questionnaire, which included information about the demographic characteristics and lifestyle. The analysis found significant differences between the two groups in terms of age, weight, BMI, and combined prevalence of being overweight and obese. Compared with less active females, high active females showed significantly more favorable dietary habits (p < 0.05). Significantly higher values were observed for the total physical activity energy expenditure in METs-min/week (p = 0.028). Moreover, females with high screen time (>3 h per day) were younger, less active, slept longer, and had higher intakes of fast foods and chocolates/candy intake (p = 0.001). Overall, the participants were highly active, exceeding the recommended physical activity needed to enhance health. The analysis also showed sufficient sleep duration (>7 h/night) was significantly associated with the diet and nutrition of the participants. Health education programs are needed to reduce the risks of sedentary behavior, sleep problems, and dietary habits.

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BACKGROUND: Regular exercise has many benefits for adults with physical disabilities (AwPD). Despite these benefits, significant barriers to participating in exercise exist for AwPD. Community-based adaptive fitness centers promote exercise for AwPD by minimizing barriers. Research has yet to clearly examine the personal and environmental factors associated with enrollment and attendance rates of AwPD in community-based adaptive fitness centers. OBJECTIVE: The purpose of our study was to explore personal and environmental factors associated with AwPD and their attendance at a community-based adaptive fitness center once enrolled. METHODS: Individuals aged 18-85 with a physical disability interested in exercising were referred to a community-based adaptive fitness center. At initial assessment, participants completed demographics, health, barriers to exercise, and exercise self-efficacy (ESE) surveys. Following initial assessment, participant visits to the fitness center were tracked for six months. RESULTS: Of 106 participants, 27 never visited the facility after initial assessment, and the remaining participants with six months of attendance data (n = 67) averaged 14.9 (SD = 14.2) visits. Correlation results showed a negative curvilinear relationship between number of visits and years living with disability (rs = -0.24, p < 0.05), with higher attendance associated with more recent diagnosis. Logistic and stepwise regressions showed that ESE score (ß = 0.107, p = 0.026) was the only significant predictor of attending the fitness center once enrolled. CONCLUSIONS: This study demonstrates the importance of understanding personal and environmental factors and assessing ESE for AwPD who are newly enrolled in a community-based adaptive fitness center.

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During COVID-19 lockdowns less people were able to fulfill the WHO recommendations on physical activity. Also, fitness centers were associated to SARS-CoV-2 superspreader events. However, the risk of infection can be strongly reduced by outdoor air ventilation. To investigate whether a reopening of fitness centers can be justified, CO 2 concentration was measured during four days in a fitness center. Except for one room, the observed CO 2 concentrations were mainly under 800 ppm, which stands for high air quality. The strong decrease of CO 2 concentration during the 15 min evacuations following each hour of workout, speaks for the functionality of the ventilation system. In particular, the number of people present in the studio has a strong impact on the estimated CO 2 value. In a linear mixed model, an additional CO 2 concentration of 2.24 ppm (95 % confidence interval [2.04, 2.43]) was estimated for this setting with a total volume of 4065 m 3 in the fitness center and a possible air change rate per hour up to 10. This means, that for 45 visitors, 100 ppm can be added to the predicted concentration. To summarize, a combination of ventilation, restriction of the number of visitors and surveying the CO 2 concentration allowing for further restrictions in case of need, seems to be an adequate means to reduce the risk of SARS-CoV-2 infection in fitness centers.

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BACKGROUND: Exercise training is a known important prevention and treatment modality in patients with cardiovascular (CV) diseases. However, the CV risk factors in gym users have been poorly studied. The aim of this study was to monitor CV risk factors of gym users over 10 years in order to investigate whether gyms are used settings for secondary disease prevention. METHODS: In 2007 and 2017, a cross-sectional research survey was adopted to determine CV risk factors and habits in gym users (18-69 years) of the Veneto region. These data were analyzed and compared with those of PASSI, a national surveillance system of the Italian population. RESULTS: During the last decade, there has been an increase in gym users over 50 years of age and in people with arterial hypertension and hypercholesterolemia. People attending the gym on medical referral are increasing, but they are still few (<10%). When comparing the collected data with PASSI surveillance, most of the CV risk factors are strongly underrepresented in gym users. CONCLUSION: The prevalence of gym users with CV risk factors is rather low, regardless of age. Physicians still need to encourage and prescribe physical exercise for secondary prevention and treatment of chronic diseases.

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O objetivo deste estudo foi descrever a estrutura, o perfil dos frequentadores e o padrão de utilização de Academias a Céu Aberto (ACA) localizadas em áreas de vulnerabilidade distintas de Belo Horizonte, Minas Gerais. Estudo com delineamento transversal e análises exploratórias, realizado em duas ACA no ano de 2016. Foram utilizadas três abordagens in loco para mensurar as variáveis de interesse: das estruturas das ACA (PA R A), entrevistas face-a-face com os usuários presentes e observação sistemática dos frequentadores (SOPARC). Os dados foram analisados com a estatística descritiva e testes de qui-quadrado e Fisher no software R (p < 0,05). ACA-médio risco apresentou melhores estruturas para exercícios, conforto para usuários e condições de limpeza, estética e segurança comparadas à ACA-baixo risco. Foram entrevistados 49 adultos (51,2% mulheres) e observados 294 frequentadores (59,9% homens). Entre os usuários entrevistados, a maioria tinha mais de 50 anos, apresentavam sobrepeso ou obesidade (65,2%). Ademais, 51,0% dos entrevistados realizavam 150 minutos ou mais de atividade física moderada ou vigorosa, sendo que 24,5% deles atingiram esse tempo utilizando apenas as ACA (p = 0,016). Por meio do SOPARC, foi observado proporcionalmente maior presença de adultos (62,0%), de frequentadores em atividades sedentárias (58,4%), seguido de exercícios nos aparelhos das ACA (34,7%), e em dias de semana (64,0%). Proporção significativa de frequentadores em atividades sedentárias foi observada na ACA-baixo risco (p < 0,001). Este estudo contribui para orientação de políticas públicas de promoção de atividade física nas ACA, reforçando a relevância dos aspectos do ambiente físico e social no planejamento, monitoramento e avaliação dessas intervenções

This study aimed to describe the characteristics, the profile of users, and the pattern of use of Outdoors Gym (ACA - Portuguese abbreviation) in different socioeconomic areas of Belo Horizonte, Minas Gerais. A cross-sectional study was carried out in the two ACA in 2016. Three instruments were used to measure the variables of interest in loco: the characteristics of the ACA ( PARA), face to face interviews, and systematic observation of attendees (SOPARC). Data were analyzed using descriptive statistics and chi-square and Fisher tests in the R software (p < 0.05). ACA-medium risk showed better structures for exercises, comfort for users, and conditions of cleanliness, aesthetics, and safety compared to ACA-low risk. Forty-nine adults (51.2% women) were interviewed, and 294 participants were observed (59.9% men). Among the users in-terviewed, most were over 50 years old, were overweight or obese (65.2%). Furthermore, 51.0% of respond-ents performed 150 minutes or more of moderate or vigorous physical activity, and 24.5% of them reached this time using only the ACA (p = 0.016). Through SOPARC was observed a proportionally greater presence of adults (62.0%), who were in sedentary behaviors (58.4%), followed by ACA exercises (34.7%) and dur-ing weekdays (64.0%). A significant proportion of participants in sedentary activities was observed in the ACA-low risk (p < 0.001). This study may contribute to guiding physical activity promotion and reinforces the relevance of physical and social environments in the planning, monitoring, and evaluation of ACA

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BACKGROUND: Knowledge on the relationship between fitness center use and long-term members' subsequent goal achievement is limited. Therefore, the aim was to investigate the prospective association between the use of fitness centers during 18 months and subsequent self-reported goal achievement among long-term members. METHODS: This was a registry- and survey-based longitudinal study of 2851 people who had been members at a Norwegian fitness center chain for more than two years. Fitness center use from December 2016 to June 2018 was obtained from registry data. Subsequent goal achievement was measured in a survey in June 2018, assessed by a 1-100 visual analogue scale, and a score between 0 and 50 was defined as low goal achievement. RESULTS: Visiting the fitness center frequently and regularly, and having frequent group activity bookings were associated with higher subsequent self-reported goal achievement. Participants with fewest visits (1-57 days) during 18 months were more likely to report low goal achievement than participants with most visits (118-543 days) (OR = 8.5; 95% CI 6.3-11.4). Fitness trainer bookings was not clearly associated with subsequent goal achievement. CONCLUSIONS: Frequent and regular long-term fitness center use were associated with higher subsequent self-reported goal achievement.

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PURPOSE: To assess eating behavior and associated factors in male fitness-center attendees. METHODS: An anonymous questionnaire was administered to male fitness center members of Innsbruck (Austria), aged 18-80 years to assess socio-demographic features, weight history, sports activity, eating behavior including disordered eating based on the Eating Disorder Examination Questionnaire (EDE-Q) and DSM-5 key symptoms for eating disorders (anorexia nervosa, binge eating, bulimia nervosa, purging disorder) and body image. Three age groups (younger-middle-aged-older men) were compared regarding the variables described above. RESULTS: A total of 307 men included displayed high rates of disordered eating as described by EDE-Q cutoff scores (5-11%) as well as by DSM-5 eating disorder symptoms (10%). While EDE-Q cutoff scores did not differentiate between the groups, the prevalences of DSM-5 eating disorder symptoms yielded significant differences indicating a clear decrease with increasing age. Binge eating and bulimic symptoms with excessive exercising as the purging method were the most often reported symptoms. CONCLUSION: Although described as typically female, disordered eating does occur in male fitness-gym attendees across all ages. The older the men, the less prevalent are the symptoms. Awareness of disordered eating and possible negative effects need to be addressed for attendees and trainers of the gym. LEVEL OF EVIDENCE: V-descriptive survey study.

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In fall 2020, a coronavirus disease cluster comprising 16 cases occurred in Connecticut, USA. Epidemiologic and genomic evidence supported transmission among persons at a school and fitness center but not a workplace. The multiple transmission chains identified within this cluster highlight the necessity of a combined investigatory approach.

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This study investigated the air quality improvement in terms of bacterial and fungal contamination in an exercise room of a fitness center under normal operating conditions. Environmental conditions including air conditioning, ventilation, moisture, CO2, particulate matters, and total number of users were also recorded. In addition, fungal and bacterial load were assessed and disinfection on sports equipment surface was also examined. Background bacteria and fungi densities in bioaerosols were in the range of 249 ± 65 to 812 ± 111 CFU/m3 and 226 ± 39 to 837 ± 838 CFU/m3 in the exercise room of the fitness center and 370 ± 86 to 953 ± 136 CFU/m3 and 465 ± 108 to 1734 ± 580 CFU/m3 in the outdoor air, respectively. Chlorine dioxide and weak acid hypochlorous water aerosols could remove both bacteria and fungi much better than water scrubbing. Contact time of 15 min was sufficient to control both bacteria and fungi to comply with the official air quality standards. User density and carbon dioxide deteriorated both bacteria and fungi disinfection performance whereas temperature was only statistically significant on fungi disinfection. Other factors including relative humidity, airflow velocity, and particulate matters did not have any statistically significant effect on microbial inactivation. Apart from bioaerosol disinfection, inactivation of microorganisms on surfaces of sports equipment was also conducted using chlorine dioxide, zinc oxide, weak acid hypochlorous water, and commercial disinfectant. The surfaces of bicycle handle, dumbbell, and sit-up bench were found to be contaminated with bacteria. Overall bacterial load was 390 to 3720 CFU/cm2 with Escherichia coli specifically 550 to 1080 CFU/cm2. Chlorine dioxide and zinc oxide were noticeably better than weak acid hypochlorous water and commercial disinfectant in terms of bacteria inactivation whereas all tested disinfectants had comparable effectiveness on E. coli disinfection. Targeted microorganisms on the sports equipment surface were sufficiently inactivated within 2 min after the application of disinfectant.

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To investigate a superspreading event at a fitness center in Hong Kong, China, we used genomic sequencing to analyze 102 reverse transcription PCR-confirmed cases of severe acute respiratory syndrome coronavirus 2 infection. Our finding highlights the risk for virus transmission in confined spaces with poor ventilation and limited public health interventions.

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BACKGROUND: Physical activity (PA) is recognized as important predictor of healthy aging. However, the influence of the type of voluntary PA as well as age or sex in this relationship is unclear. Thus, we assess the association between current and past PA level and physical performances among voluntary active older adults. METHODS: Functional capacities (timed Up and Go, sit-to-stand, alternate step test, unipodal balance, grip strength, knee extension strength, estimated muscle power and VO2 max) as well as body composition (DXA: total and appendicular lean masses (LM; kg), fat mass (FM; %)) were measured. Current and last 5-years PA level (time spent on total, aerobic, resistance and body & mind activities) were assessed using an interview. Multiple regressions, adjusted on age, sex and BMI, were performed to assess the relationship between current or past PA level and physical performances. Sub-group analysis, according to the sex (men/women) or age (< 65 yrs. vs. ≥65 yrs) were performed. RESULTS: 525 subjects (age:61.7 ± 8.1 yrs.; women:68.9%; BMI:26.4 ± 4.8 kg/m2) were enrolled in this study. After adjustment on confounding factors, total current PA level has positive impact on total FM (ß = - 2.09, p = 0004) and balance (ß = 0.10; p = 0.05). Moreover, current body & mind activities influence total LBM (ß = - 0.22, p = 0.02) and balance (ß = 0.17; p = 0.001) whereas resistance activities influence total LBM (ß = 0.17; p = 0.05), FM (ß = - 0.16; p = 0.04) and sit-to-stand capacities (ß = - 0.10; p = 0.05). Globally, these results were more pronounced in women than in men and among people aged over 65 years. Past level of PA has low impact on functional capacities and body composition, regardless of sex. Among people < 65 years, there is no relationship between time spent on total PA and functional capacities or body composition. However, a significant correlation was found between past total PA and balance (r=` 0.19; p = 0.01), alternate-step test (r = 0.24; p = 0.02) and VO2max (r = 0.19; p = 0.02) in people aged over 65 years. More precisely, the past time spent on aerobic and resistance activities influence balance (r = 0.16; p = 0.03 and r = 0.15; p = 0.04, respectively) after 65 yrs. old. CONCLUSION: Even if physical activity history has little influence on physical aging process, being active is associated with body composition and functional capacities, especially among women aged 65 years and over.

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The objective of this study was to develop two instruments ­ a quick-question survey and a flowchart, both related to COVID-19 in asymptomatic and pre-symptomatic periods ­ in order to identify biological risk factors and define sociocultural and behavioral profiles for users of fitness centers and people who engage in leisure-time physical activities, either freely or systematically. For the methods, the instruments were structured from the model proposed by Pasquali (2010). Although there are some protocols and questionnaires focused on biological issues, there are no protocols for a qualitative investigation of sociocultural aspects, specifically behavioral ones, related to the spread of COVID-19. By extrapolating the biological interface, the results of this study present procedures that can help Physical Education professionals with their decision making and, at the same time, contribute to the guidance, education and safety of users, so that they understand the importance of individual and collective co-responsibility

O objetivo do estudo foi elaborar dois instrumentos, sendo um questionário de perguntas rápidas e um flu-xograma, ambos relacionados à COVID-19 em períodos assintomáticos e pré-sintomáticos, para identificar fatores de riscos biológicos e delinear perfis sociocultural e comportamental dos usuários de academias de mus-culação e de práticas de atividades físicas de lazer, livre ou sistematizada. Para os métodos, a estruturação dos instrumentos baseia-se no modelo proposto por Pasquali (2010). Embora existam alguns protocolos e questionários voltados às questões biológicas, não há protocolos de investigação qualitativa dos aspectos socio-culturais, especificamente comportamentais, relacionados com a disseminação da COVID-19. Ao extrapolar a interface biológica, os resultados do estudo apresentam procedimentos que possam auxiliar os profissionais de Educação Física nas tomadas de decisões e, ao mesmo tempo, contribuem na orientação, educação e segu-rança dos usuários, de modo que compreendam a importância da corresponsabilidade individual e coletiva

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SARS-CoV-2 can spread by close contact through large droplet spray and indirect contact via contaminated objects. There is mounting evidence that it can also be transmitted by inhalation of infected saliva aerosol particles. These particles are generated when breathing, talking, laughing, coughing or sneezing. It can be assumed that aerosol particle concentrations should be kept low in order to minimize the potential risk of airborne virus transmission. This paper presents measurements of aerosol particle concentrations in a gym, where saliva aerosol production is pronounced. 35 test persons performed physical exercise and aerosol particle concentrations, CO2 concentrations, air temperature and relative humidity were obtained in the room of 886 m³. A separate test was used to discriminate between human endogenous and exogenous aerosol particles. Aerosol particle removal by mechanical ventilation and mobile air cleaning units was measured. The gym test showed that ventilation with air-change rate ACH = 2.2 h-1, i.e. 4.5 times the minimum of the Dutch Building Code, was insufficient to stop the significant aerosol concentration rise over 30 min. Air cleaning alone with ACH = 1.39 h-1 had a similar effect as ventilation alone. Simplified mathematical models were engaged to provide further insight into ventilation, air cleaning and deposition. It was shown that combining the above-mentioned ventilation and air cleaning can reduce aerosol particle concentrations with 80 to 90% , depending on aerosol size. This combination of existing ventilation supplemented with air cleaning is energy efficient and can also be applied for other indoor environments.