Wearable Air Purifier Ionic Rechargeable
Free Priority Mail Shipping in the USA! New rechargeable battery with 28 hours of run time! Mini, wearable and ultra light weight, this personal air purifier is a must-have to breathe fresher air wherever you travel. Use it for air travel, movie theaters, waiting rooms or any confined areas. Cleans viruses and pollutants in the air. Protect yourself and others by wearing a personal air ionizer and a face shield. This promotes better oxygen and no rebreathing that occurs with masks.
- Combat against: Viruses, Mold Spores, Pollen, Dust, Smoke, Fumes, Odors, Allergens
- Rechargeable up to 28 hours of run time
- Helps you Breathe easier when in classrooms, waiting rooms or on a plane.
- Maintenance Free
- Thousands of positive reviews and anecdotes worldwide.
- Four US patents granted.
- Tested safe for airplane avionics.
- Tested down to virus size range of .04 microns.
- Solid platinum permanent emitter and stainless steel collectors for corona discharge purity.
How It Works
The Air Supply® Rechargeable generates an intense electrostatic ion wind that charges floating particles in the breathing zone. The particles are then electrostatically repelled away from the wearer substantially creating a particle free exclusion zone for toxic pollutants and contaminants in the breathing zone. Perfumes and odors are also minimized by the Air Supply® Rechargeable ionization effect.
Significant and substantial reductions of airborne breathable particles have been confirmed by leading world authorities in health related aerosol studies by Wein Air Supply® Rechargeable technology from .04 to 3 microns in size. This represents viruses and bacteria. Because this happens outside the body. It does not matter how infectious or toxic these particles are! See validation studies Dr. Sergey Grinshpun, University of Cincinnati
Substantial inhalation risk reductions were confirmed under strict laboratory conditions in confined spaces (aircraft cabin simulations) and large test calibration chambers (rooms) used. A leading aerosol scientist Dr. Sergey Grinshpun who peer reviewed the studies said:
“Whether a particle is biological or virulent in humans is of no relevance while it is airborne. While still airborne, these virulent particles obey the same laws and effects as all airborne particles of the same aerodynamic size and density.”
Testing with inert particles of the same size and density therefore yields a very powerful methodology to characterized any floating particle whether infectious or not!
Increase Protection Against Airborne Viruses
How To Increase The Protection Factor Provided By Existing Facepiece Respirators Against Airborne Viruses: A Novel Approach
SER GEY A. GRINSHPUN, BYUNG UK LEE, MJKHAlL YERMAKOV, and ROY MCKAY
CENTER FOR HEALTH-RELATED AEROSOL STUDIES, OCCUPATIONAL PULMONARY SERVICES DEPARTMENT OF ENVIRONMENTAL HEALTH,
UNIVERSITY OF CINCINNATI, CINCINNATI, OH 45267-0056, U.S.A.
Adverse health effects associated with airborne particles, including microbial and non-microbial aeroallergens, have recently gained considerable attention, especially due to increased reporting of respiratory symptoms in some occupational and residential indoor environments. The latest outbreaks of emerging diseases and the threat of bioterrorism have added some fuel to the problem. Although the transmission routes for some emerging diseases are still to be identified (e.g., SARS), many virus-induced health effects are known to be spread in the aerosol phase. Reducing the concentration of inhaled airborne particulates should reduce the risk of infection, as the number of cases among susceptible population is proportional to the average concentration of infectious droplet nuclei in a room and the probability that the particles will be inhaled. There is a special demand to increase the efficiency of existing respiratory protection devices, which otherwise may not provide an adequate protection against aerosol agents. Responding to this demand, we have developed and tested a new concept that allows to drastically enhance the protection factor provided by conventional facepiece filter respirators against submicron airborne particles (e.g., viruses). The concept is based on the continuous emission of unipolar electric ions in the vicinity of a respirator.
Figure 1. Experimental setup
The new concept was tested in a non-ventilated indoor chamber (24.3 m3). An R95 respirator (3M 8247, 3M Company, St. Paul, MN, USA) was sealed to a manikin with silicone and petroleum jelly and connected to a breathing machine that operated at a constant air flow rate of 30 L/min. (inhalation). Prior to the start of data collection, leak tests (between the mask and the face of the manikin) were conducted with a bubble producing liquid (Trubble Bubble, New Jersey Meter Co., Paterson, NJ, USA). This experimental design allowed us to evaluate the enhancement effect of continuous emission of unipolar electric ions on the protection provided by the respirator filter (assuming that the particle penetration through the leaks was negligible). The viral-size particles (mid-point aerodynamic size da = 0.04-0.20 µm) were aerosolized into the chamber using a smoke generator. An Electrical Low Pressure Impactor (ELPI, TSI Inc./Dekati Ltd, St. Paul, MN, USA) was used to determine the concentration and aerodynamic particle size distribution in real-time. Aerosol sampling from outside and inside the respirator was alternated. Sampling lines and flow rates were identical up- and down-stream of the ELPI. The time resolution was adjusted to 10 seconds. The respirator protection factor was determined as a ratio of the measured aerosol concentrations outside (COUT) and inside (CIN) the respirator in 3 min. increments during a period of 12 min. The set-up is schematically presented in Figure 1. The background tests were performed in the absence of air ion emission. Then, a unipolar ion emitter (VI-3500*, Wein Products, Inc., Los Angeles, CA, USA) was turned on at 20 cm from the respirator, and the protection factor was determined in 3 min. increments during 12 min. of its operation. The emitter was characterized by measuring the air ion density at 1 m from the emission point using an Air Ion Counter (AlphaLab Inc., Salt Lake City, UT, USA). In addition, to the manikin-based experiments with a sealed respirator, human subject testing was also performed. In this phase of testing, the same model R95 filtering facepiece was worn by a test subject who was previously fit tested to this respirator using a TSI model 8020 Portacount (TSI, Inc). The fit testing protocol included standard head and breathing maneuvers required in the U.S. (normal and deep breathing, moving the face and the body left and right and up and down, talking, etc.).
The protection factor measured with the respirator sealed on the manikin face was 73±6.0. We expected that it would exceed 20 since the R95 device should have at least 95% collection efficiency in the worst-case scenario. The emitter characterization tests showed that the density of negative air ions in the chamber increased rapidly, once it was turned on. It reached (1.340±0.037)x106 cm·3 during 5 sec., remained approximately at that level during a 30 min. continuous ion emission, and dropped to the initial level within 3 min. after it was turned off (Figure 2). Therefore, it was concluded that the experiments with respirators in the presence of the emitter were conducted at a constant air ionization level.
Figure 2. Air ion density as a function of time during unipolar ion emission by VI-3500* in the chamber.
Figure 3. Protection factor of R95 respirator enhanced by VI-3500* (averaged over da=0.04-0.20 µm).
Figure 3 shows the particle size integrated data as a function of the ion emission time (time t = 0 represents the protection factor determined without emission of air ions, while t > 0 represent the data obtained when the emitter was continuously operated during 3, 6, 9, and 12 min., respectively.) It is seen that the respirator protection increased to 512±65 (enhancement of 7) as a result of a 3 min. ion emission in the vicinity of the respirator. Further ionization did not significantly change the enhancement of the respirator performance (p= 0.06). It is believed that since the particles and the filter fibers charged unipolarly by the ions, the repelling forces decreased the particle flow toward the filter. This reduced the number of particles that could potentially penetrate through the mask and be inhaled. The protection (fit) factors of the R95 respirator measured on the human subject ranged from 110 to 278, depending on the breathing procedure, with an average of 152, when no air ion emission was introduced. When the ion emitter was turned on, the fit factors ranged from 311 to 1380, with an average of 611, showing a 4-fold enhancement. The data suggest that faceseal leakage may somewhat reduce, but not eliminate, the effectiveness of respirator performance enhancement achieved due to the unipolar ion emission.
Continuous unipolar ion emission in the vicinity of a filtering facepiece respirator has the potential to drastically enhance performance against virus-size aerosol particles.
The authors are thankful to Wein Products, Inc. (Los Angeles, CA, USA) for helping initiate this research.
*This document originally pertained to VI-2500, Wein Products, Inc.
Ionic Air Purifier Reduce Aerosol Exposure Indoors
S. A. Grinshpun, G. Mainelis, M. Trunov, A. Adhikari, T. Reponen, K. Willeke
CENTER FOR HEALTH-RELATED AEROSOL STUDIES, DEPARTMENT OF ENVIRONMENTAL HEALTH; UNIVERSITY OF CINCINNATI, OHIO, USA. PRESENT ADDRESS DEPARTMENT OF ENVIRONMENTAL SCIENCES RUTGERS UNIVERSITY, NEW BRUNSWICK, NEW JERSEY, USA. PRESENT ADDRESS MECHANICAL ENGINEERING DEPARTMENT, NEW JERSEY, USA. INSTITUTE OF TECHNOLOGY, NEWARK, NEW JERSEY. USA.
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 exposure in confined indoor spaces. The concentration decay of respirable particles of different properties was monitored in real time inside the breathing zone of a human manikin, which was placed in a relatively small (2.6 m³) walk-in chamber during the operation of an ionic air purifier in calm air and under mixing air condition. The particle removal efficiency as a function of particle size was determined using the data collected with a size-selective optical particle counter. The removal efficiency of the more powerful of the two wearable ionic purifiers reached about 50% after 15 min and almost 100% after 1.5 h of continuous operation in the chamber under calm air conditions. In the absence of external ventilation, air mixing, especially vigorous one (900 CFM), enhanced the air cleaning effect. Similar results were obtained when the manikin was placed inside a partial enclosure that simulated an aircraft seating configuration. All three stationary ionic air purifiers tested in this study were found capable of reducing the aerosol concentration in a confined indoor space. The most powerful stationary unit demonstrated an extremely high particle removal efficiency that increased sharply to almost 90% within 5-6 min, reaching about 100% within 10-12 min for all particle sizes (0.3-3 µm) tested in the chamber. For the units of the same emission rate, the data suggest that the ion polarity per se (negative vs. positive) does not affect the performance but the ion emission rate does. The effects of particle size (within the tested range) and properties (NaCl, PSL, Pseudomonas fluorescens bacteria) as well as the effects of the manikin's body temperature and its breathing on the ionic purifier performance were either small or insignificant. The data suggest that the unipolar ionic air purifiers are particularly efficient in reducing aerosol exposure in the breathing zone when used inside confined spaces with a relatively high surface-to-volume ratio.
Ionic air purifiers have become increasingly popular for removing dust particles, aeroallergens and airborne micro organisms from indoor air in various settings. While the indoor air cleaning effect, resulting from unipolar and bipolar ion emission, has been tested by several investigators, there are still controversial claims (favorable and unfavorable) about the performance of commercially available ionic air purifiers. Among the five tested ionic air purifiers (two wearable and three stationary) producing unipolar air ions, the units with a higher ion emission rate provided higher particle removal efficiency. The ion polarity (negative vs. positive), the particle size (0.3-3 µm) and properties (NaCl, PSL, Pseudomonas fluorescensbacteria), as well as the body temperature and breathing did not considerably affect the ionization-driven particle removal. The data suggest that the unipolar ionic air purifiers are particularly efficient in reducing aerosol exposure in the breathing zone when they are used inside confined spaces with a relatively high surface-to-volume ratio (such as automobile cabins, aircraft seating areas, bathrooms, cellular offices, small residential rooms and animal confinements). Based on our experiments, we proposed that purifiers with a very high ion emission rate be operated in an intermittent mode if used indoors for extended time periods. As the particles migrate to and deposit on indoor surfaces during the operation of ionic air purifiers, some excessive surface contamination may occur, which introduces the need of periodic cleaning these surfaces.
Inhaled airborne particles and microorganisms can cause adverse health effects, such as asthma and allergic diseases (Burge, 1990; Koskinen et al., 1995; Miller, 1992; Spengler et al., 1993) as well as airborne infections (Burge, 1990). Exposure to indoor aerosol pollutants has become a growing public and occupational health concern (American Lung Association, 1997; Gammage and Berven, 1996; Samet and Spengler, 1991). The outbreaks of emerging diseases and the threat of bioterrorism have generated special needs in indoor air cleaning against respirable particles, especially those of biological origin. Strategies developed for protecting building environments from deliberately used aerosol agents require efficient air filtration and air cleaning systems [National Institute for Occupational Safety and Health (NIOSH), 2003]. Conventional indoor air purifiers include mechanical filters, electronic air cleaners, hybrid filters, gas phase filters and ozone generators. Among various mechanisms, the emission of ions, also referred to as air ionization, has shown considerable promise. Emission of bipolar ions enhances the agglomeration of smaller particles into larger ones, which then gravitationally settle and thereby purify the air. Ionization may also cause attraction between particles and grounded surfaces resulting in electrostatic deposition.
The physical and biological effects of small air ions on indoor air quality as well as various health benefits and implications of air ionization have been discussed in the literature (Daniell et al., 1991; Kondrashova et al., 2000; Krueger and Reed, 1976; Soyka and Edmonds, 1977; Van Veldhuizen, 2000; Wehner, 1987). The ion emitters, which meet health standards (e.g. by not generating ozone above the established thresholds), have been incorporated in commercial air purification devices that utilize either bipolar or unipolar ion emission. These devices are currently produced by several manufactures worldwide (Sharper Image Inc., Little Rock, AR, USA; Topway Electronic Factory Co., Guangzhou, China; Wein Products, Inc., Los Angeles, CA, USA; etc.) and used in residential and occupational settings for removing dust particles, aeroallergens, and airborne microorganisms from the air. The ion emission has been tested by several investigators for its ability to reduce the indoor aerosol concentration (Bigu, 1983; Bohgard and Eklund, 1998; Grabarczyk, 2001; Harrison, 1996; Hopke et al., 1993; Khan et al., 2000; Kisieliev, 1966; Li and Hopke, 1991). The bactericidal effect of air ionization has also been assessed (Lee, 2001; Marin et al., 1989; Seo et al., 2001; Shargavi et al., 1999). However, the mechanisms involved in the ionic purification of inhaled air in the breathing zone remains poorly understood. Furthermore, there are still controversial claims (favorable and unfavorable) about the performance of commercially available ionic air purifiers. This controversy reflects a lack of quantitative data on the purifiers’ efficiency in peer-reviewed scientific journals.
Ionic air purifiers are available as stationary and wearable devices. The latter have been specifically developed for personal respiratory protection by targeting particles in the human breathing zone. Some models are designed to operate in confined spaces, such as automobiles, aircraft cabins, bathrooms, office cubicles, and small animal confinements. Our pilot study has demonstrated that unipolar ion emission by corona discharge may considerably reduce the aerosol concentration in the breathing zone (Grinshpun et al., 2001). We concluded that the concentration decrease, during the air ionization, occurs as air ions impart electrical charges of the same polarity on aerosol particles, and the unipolarly-charged particles then repel each other out of the breathing zone towards nearby surfaces, where they are deposited. More recent investigation by our group (Lee et al., 2004) has shown that a high-density emission of unipolar ions has a good potential for air cleaning across room-size indoor spaces uniformly contaminated with fine and ultrafine aerosol particles. Another recent work - an extensive theoretical study of Mayya et al. (2004), which was awaiting publication when the present paper was being completed - has identified and analyzed several physical factors affecting the airborne particle removal by unipolar ionization and developed advanced computational model to quantify the process.
In this study, we determined the particle removal efficiencies of five ionic air purifying devices - two wearable and three stationary units - that produce unipolar ions (either positive or negative). The concentration decay of respirable particles (0.3- 3 μm) was monitored in real time inside the breathing zone of a human manikin placed in a chamber that simulated a confined indoor environment. The role of air mixing in the chamber as