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| Device name | Measured physical metric | Particles size range | Operation principle | Level of development |
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DEKATI
Low-cost total active surface area monitor | Total active surface area | 10 nm–3 µm | Aerosol particle charging in a unipolar diffusion charger; electrical detection of total amount of charged particles using escaping charge technology. | Operational preprototype |
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TSI
NanoGuard | Number concentration, size distribution, and morphology finger print | <20–450 nm | Electrical mobility classified particle charge concentration measured with two detectors with different response characteristics. Signal thresholds trigger method of operation (integral/size distribution scan/sampling with electrostatic precipitator). Thermal precipitator to continuously sample over 8-hour shift. | Working prototypes; full characterization still underway |
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Naneum
Real-time CNT Monitor | Number concentration | All CNT sources | CNT particles in the air are preselected using certain physical/chemical characteristics of CNT. Individual CNT objects are then counted using optical techniques. | Near market |
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Naneum
Personal nanosampler | Mass concentration and size distribution of nanoparticles | 2 nm–5 µm | Up to three cyclones collect larger particles with a final cut-off of 300 nm. Particles with aerodynamic diameters <300 nm are collected on a series of specially designed diffusion stages, with a variety of substrates. | Near market |
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Stockholm uni.
Sampler/preseparator for aerosol fraction deposited in the anterior nasal region | Depending on the metrics of the used monitor | 5–400 nm | Diffusive deposition with separation curves optimized with respect to the ICRP model and ISO/FDIS13138:2011. | Preprototype |
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Stockholm uni.
Sampler/preseparator for aerosol fraction deposited in the gas exchange region | Depending on the metrics of the used monitor | 20 nm–5 µm | Aerodynamic and diffusive deposition with separation curves optimized with respect to the ICRP model and ISO/FDIS13138:2011. | Preprototype |
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Grimm
NanoDevice | Particle number and size | 10 nm–27 µm | Electrical and optical principles, currents, and single particle counting (light scattering). | Preprototype |
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DTU
MEMS-based airborne nanoparticles sensor | Mass concentration and chemical composition | 5–300 nm | Particle mass: gravimetry; chemical composition: closed information. | Early stage/still in the lab |
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KIT
Catalytic Activity Aerosol Monitor (CAAM) | Catalytic activity concentration | Any with catalytic activity | Particles sampled for a short time on (heated) filter.
Reaction gases added to start catalytic reaction.
Detection based on IR absorption of the product gas(es).
Reactant gas supply from lecture bottle(s) with flow control. | Proof of concept/preprototype |
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| Fraunhofer IPA CNT-detect | Mass concentration | All CNT sources | Magnetic deposition followed by Raman spectroscopy | Preprototype |
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