Minimate™ AS150MM Personal Ionic Air Purifier

Air pollution has met its match with the newly redesigned Minimate™ AS150MM. This wearable mini unit propels cleaner, fresher and healthier air into your breathing zone all without using filters. Created especially to help sufferers who want to breathe more easily when traveling. Ounce for ounce the AS180i outperforms the competition and is top of the line in personal wearable air purification. With an advanced plasma discharge design, the AS150MM comes with solid platinum emitter electroplated gold grid. This Minimate™ also comes with a breakaway strap for user safety. Benefit from a decade of advanced research from the pioneer in personal air purification.

  • Benefits

    • Helps combat against: Dust, Mold Spores, Pollen, Smoke, Viruses, Fumes, Odors, Allergens
    • Helps you ​Breathe easier when at the office or on a plane.
    • Filterless and Maintenance Free
    • Portable and travels with you.​
    • 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 gold plated stainless steel collectors.
    • Battery operated.
  • How It Works

    Minimate™ generates an intense electrostatic ion wind that charges floating particles in your personal breathing zone. The particles are then repelled away from the wearer substantially creating a particle free exclusion zone for toxic allergens, smoke, dust, viruses and bacteria. Perfumes and odors are also minimized by the Minimate™ ionization effect.

    Significant and substantial reductions of airborne breathable particles have been confirmed by leading world authorities in health related aerosol studies by Wein Minimate™ technology from .04 to 3 microns in size. This represents most viruses and bacteria. Because this happens outside the body. It does not matter how infectious or toxic these particles are! 

    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 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






    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.


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