Evaluation of ionic air purifiers for reducing aerosol exposure in confined indoor spaces.

  title={Evaluation of ionic air purifiers for reducing aerosol exposure in confined indoor spaces.},
  author={Sergey A. Grinshpun and Gediminas Mainelis and Mikhaylo A. Trunov and Atin Adhikari and Tiina Reponen and Klaus Prof. Dr. Willeke},
  journal={Indoor air},
  volume={15 4},
UNLABELLED Numerous techniques have been developed over the years for reducing aerosol exposure in indoor air environments. Among indoor air purifiers of different types, ionic emitters have gained increasing attention and are presently used for removing dust particles, aeroallergens and airborne microorganisms from indoor air. In this study, five ionic air purifiers (two wearable and three stationary) that produce unipolar air ions were evaluated with respect to their ability to reduce aerosol… 

Control of aerosol contaminants in indoor air: combining the particle concentration reduction with microbial inactivation.

The data suggest that the tested portable unit operating in approximately 25 m3 non-ventilated room is capable to provide CADR-values more than twice as great than the conventional closed-loop HVAC system with a rating 8 filter.

Indoor air pollution control through ionization

Various health effects are associated with or directly caused by respirable airborne particles and microbial agents. To reduce the human exposure to these indoor pollutants, numerous techniques have

Indoor Air Quality Management by Combined Ventilation and Air Cleaning: An Experimental Study

ABSTRACTA combination of ventilation and air cleaning regimes were investigated for the removal of aerosol particles and volatile organic compounds (VOCs) in a test chamber, representing a typical

Negative Ion Purifier Effects on Indoor Particulate Dosage to Small Airways

  • M. DuanLijuan Wang Li Liu
  • Environmental Science
    International journal of environmental research and public health
  • 2021
NIAPs were found to be an energy-efficient air purification intervention that can effectively reduce the small airway particle exposure when a sufficient negative ion concentration is maintained.

Removal of fine and ultrafine particles from indoor air environments by the unipolar ion emission

Particles Removal by Negative ionic Air Purifier in Cleanroom

This study investigated effectiveness of negative ionic air purifier in lowering the concentration of particles in a closed test chamber. The performance test was carried out in a closed test chamber

Effect of an Ionic Air Cleaner on Indoor/Outdoor Particle Ratios in a Residential Environment

We tested a leading commercially available ionic air cleaner in a typical residential apartment to study the effect of the device on indoor/outdoor airborne particle number and mass concentration

Control of Respirable Particles in Indoor Air with Portable Negative Air Ion Generator

Portable negative air ion generator has been designed and tested. This device generates continuous emission of unipolar (negative) ions and it was evaluated by investigating its ability to remove



Efficacy of air cleaning systems in controlling indoor radon decay products.

The filtration unit was found to be more effective than the electronic air cleaner and the activity fractions in the smallest size range were increased, however, the overall effect of the air cleaners was to reduce the median dose.

Evaluation of the effectiveness of several air cleaners for reducing the hazard from indoor radon progeny

In studies conducted in the early 1980s, it was suggested that the use of room-type air cleaners were relatively ineffective in reducing the hazards associated with the presence of radon decay

Characterization of indoor particle sources: A study conducted in the metropolitan Boston area.

An intensive particle monitoring study was conducted in homes in the Boston, Massachusetts, area during the winter and summer of 1996 in an effort to characterize sources of indoor particles. As part

Trial of a negative ion generator device in remediating problems related to indoor air quality.

  • W. DaniellJ. CampS. Horstman
  • Environmental Science
    Journal of occupational medicine. : official publication of the Industrial Medical Association
  • 1991
Job dissatisfaction was an apparent contributor to symptom reporting, with a magnitude comparable to presumed effects of air quality, and further testing of negative ion generator devices is needed before they should be considered for office air quality problems.