Airborne Particle Counter Sales

Airborne Particle Counter Sales Market Outlook

The global Airborne Particle Counter market is anticipated to reach USD 1.2 billion by 2035, with a compound annual growth rate (CAGR) of approximately 8.5% from 2025 to 2035. This growth is largely driven by increasing health concerns regarding air quality and the implementation of stringent regulations concerning particulate matter in various industries. The rising demand for monitoring air quality due to industrialization and urbanization is fueling market growth, as both consumers and industries become more aware of the potential health implications of airborne pollutants. Furthermore, technological advancements in sensor technologies and the growing emphasis on environmental sustainability are contributing to the upward trajectory of the airborne particle counter market. Lastly, the increased funding for research and development in air quality monitoring also serves as a catalyst for market expansion.

Growth Factor of the Market

The growth of the Airborne Particle Counter market can be attributed to several interrelated factors. First, the increased prevalence of respiratory diseases caused by poor air quality has heightened public awareness regarding the importance of monitoring airborne contaminants. Consequently, both residential and commercial sectors are investing in air quality monitoring equipment to ensure compliance with health standards. Second, the expansion of industries such as pharmaceuticals and food processing, where cleanroom environments are essential, has further accelerated demand for airborne particle counters, as these industries require precise monitoring of particulate levels to maintain product integrity. Third, advancements in technology have made airborne particle counters more accessible and efficient, allowing for real-time monitoring and data collection. Fourth, the rise of smart cities and the implementation of Internet of Things (IoT) solutions have integrated air quality monitoring into urban planning, prompting municipalities to adopt airborne particle counters. Lastly, governmental regulations aimed at reducing air pollution are pushing organizations to invest in effective monitoring solutions.

Key Highlights of the Market

• The Airborne Particle Counter market is expected to grow at a CAGR of 8.5% from 2025 to 2035.
• Growing awareness of air quality implications on health fuels market demands.
• Technological innovations are enhancing the capabilities of particle counters.
• The pharmaceutical and food industries are key drivers for cleanroom monitoring solutions.
• Governments worldwide are implementing regulations to monitor and improve air quality.

By Product Type

Portable Airborne Particle Counters:

Portable Airborne Particle Counters are increasingly popular due to their ease of use and mobility, enabling users to perform air quality assessments in various locations without the need for stationary setups. These devices allow for real-time monitoring, making them ideal for environments where immediate feedback is necessary, such as during outdoor air quality assessments or emergency response situations. Their lightweight design facilitates transport, catering to users in multiple sectors, including environmental monitoring agencies, hospitals, and research institutions. Additionally, advancements in battery technology and sensor accuracy further enhance the usability and effectiveness of portable airborne particle counters, allowing for more comprehensive data collection in diverse environments.

Handheld Airborne Particle Counters:

Handheld Airborne Particle Counters are compact devices designed for quick and efficient air quality assessments in various settings. Their size and functionality make them particularly useful for individuals who need to conduct spontaneous checks in areas like offices, schools, or hospitals. These instruments often come equipped with digital displays and Bluetooth connectivity, allowing users to easily analyze and record data. The portability of handheld counters offers significant advantages, such as enabling on-the-spot inspections and facilitating prompt decision-making regarding air quality. As concerns over indoor air quality increase in various settings, the demand for handheld airborne particle counters is expected to rise significantly.

Remote Airborne Particle Counters:

Remote Airborne Particle Counters are designed for continuous monitoring of air quality without the need for constant human intervention. These devices are often integrated with IoT technology, allowing for real-time data transmission to centralized systems for analysis and reporting. Such capabilities are particularly useful in industrial settings, where monitoring air quality is crucial for maintaining regulatory compliance and worker safety. The increasing integration of automation in various industries has further propelled the adoption of remote airborne particle counters. Their ability to provide long-term data trends and insights contributes significantly to strategic decision-making regarding air quality management.

Desktop Airborne Particle Counters:

Desktop Airborne Particle Counters are typically utilized in laboratories and cleanroom environments where precise air quality monitoring is essential. These devices have advanced features that allow for detailed analysis of airborne particles, including size distribution and concentration levels. Their stationary nature enables them to function continuously, providing consistent monitoring capabilities. The data generated by desktop airborne particle counters is crucial for regulatory compliance and maintaining standards in sensitive environments such as pharmaceutical production and semiconductor manufacturing. As industries increasingly recognize the importance of maintaining clean air standards, desktop airborne particle counters are expected to see a steady rise in demand.

Wearable Airborne Particle Counters:

Wearable Airborne Particle Counters represent a novel approach to personal air quality monitoring, catering to individuals concerned about their exposure to airborne contaminants in various environments. These compact devices can be worn by users, providing real-time data on air quality while they go about their daily activities. As urban environments become more polluted and awareness of health risks increases, the demand for wearable technology that monitors air quality is expected to grow. These devices not only empower individuals to make informed decisions regarding their health but also contribute to broader public health initiatives aimed at reducing exposure to harmful pollutants.

By Application

Indoor Air Quality Monitoring:

Indoor Air Quality Monitoring is a critical application for airborne particle counters, as many individuals spend significant amounts of time indoors, particularly in urban settings. The quality of indoor air can significantly affect health, leading to issues such as allergies, respiratory problems, and overall well-being. Airborne particle counters play a vital role in assessing particulate levels in homes, workplaces, and public buildings. The growing awareness of the health implications of poor indoor air quality has prompted organizations to invest in these monitoring solutions, enabling them to maintain healthier environments for their occupants. Furthermore, the COVID-19 pandemic has heightened focus on indoor air quality, further driving the growth of this application segment.

Cleanroom Monitoring:

Cleanroom Monitoring is essential in industries such as pharmaceuticals, biotechnology, and semiconductor manufacturing, where even minute levels of particulate contamination can compromise product integrity. Airborne particle counters are deployed in cleanroom environments to continuously assess air quality and ensure compliance with strict industry standards. These devices provide critical data on airborne particles, enabling facility managers to implement necessary control measures to maintain cleanliness. As the demand for sterile environments continues to rise, particularly with the increasing focus on health-related product manufacturing, the cleanroom monitoring application segment for airborne particle counters is anticipated to experience sustained growth.

Outdoor Air Quality Monitoring:

Outdoor Air Quality Monitoring serves an essential function in assessing the levels of airborne pollutants in urban and rural environments. Airborne particle counters are crucial in collecting data on particulate matter concentrations, which can impact public health and environmental policies. As cities face growing challenges related to pollution and climate change, the need for effective outdoor air quality monitoring solutions has never been more pressing. Various governmental and non-governmental organizations are investing in airborne particle counters to monitor air quality and develop strategies to mitigate pollution. This heightened focus on sustainability and public health is expected to drive growth in the outdoor air quality monitoring application segment.

Contamination Monitoring:

Contamination Monitoring is vital in various sectors, including food processing, pharmaceuticals, and manufacturing. Airborne particle counters are essential for detecting and quantifying particulate contamination that could pose significant risks to product quality and safety. Organizations utilize these monitoring devices to ensure that contamination levels remain within acceptable limits, thereby protecting both their products and consumers. With increasing regulations concerning product safety and quality, the demand for effective contamination monitoring solutions is expected to rise. As industries prioritize risk management and compliance, the role of airborne particle counters in contamination monitoring will become increasingly crucial.

Others:

The "Others" category encompasses additional applications of airborne particle counters that may not fit neatly into the more established segments. This can include monitoring in specialized environments like laboratories conducting research on environmental pollutants, automotive industry facilities assessing production processes, or even air quality assessments in agricultural settings. As industries continue to recognize the importance of air quality monitoring for both health and operational efficiency, the adoption of airborne particle counters in these auxiliary applications is likely to grow. The versatility of these devices makes them applicable across various sectors, thereby expanding their overall market reach.

By Distribution Channel

Online Stores:

Online Stores have revolutionized the way consumers access airborne particle counters, providing a convenient platform for purchasing both personal and industrial-grade devices. The rise of e-commerce has made it easier for customers to compare products, read reviews, and find the best deals, significantly enhancing consumer reach. Online retailers often offer a broader selection of airborne particle counters than traditional brick-and-mortar stores, catering to various needs and budgets. The convenience of online shopping, coupled with the ability to quickly access information and customer support, is driving growth in this distribution channel. As more consumers turn to digital platforms for their purchasing needs, online sales of airborne particle counters are expected to continue rising.

Offline Stores:

Offline Stores remain a vital distribution channel for airborne particle counters, particularly for customers who prefer direct interactions and consultations with sales representatives. These physical retail locations allow potential buyers to physically examine the products before purchasing, which is particularly beneficial for industries that require high levels of precision and reliability. Professional-grade airborne particle counters often come with specific technical requirements, making the expertise of in-store staff invaluable for guiding customers toward the right choice. Additionally, offline stores often provide immediate access to after-sales services, repairs, and support, which is a significant advantage for customers in need of ongoing assistance. As such, while online shopping is on the rise, offline stores still play a crucial role in the distribution of airborne particle counters, especially for specialized applications.

By Technology

Optical Particle Counters:

Optical Particle Counters utilize light scattering techniques to detect and measure airborne particles. This technology is widely adopted in various applications due to its accuracy and reliability in providing real-time data on particulate matter concentrations. Optical particle counters are particularly effective in cleanroom environments and laboratories, where precise measurements are crucial for compliance with industry standards. The ability to continuously monitor the air quality makes these devices indispensable in settings that require strict contaminant control. As awareness of the importance of maintaining clean air standards grows, the demand for optical particle counters is expected to rise significantly.

Condensation Particle Counters:

Condensation Particle Counters are designed to measure very small airborne particles, typically in the nanometer range. This technology is essential for research and industrial applications that require detailed assessments of ultrafine particles. Condensation particle counters work by converting vaporized particles into larger droplets, making them easier to detect and measure. With the growing recognition of the health impacts associated with ultrafine particles, particularly in urban environments with high traffic pollution, the demand for condensation particle counters is expected to increase. As industries and research institutions prioritize accurate measurements of fine particulate matter, this technology will likely become increasingly prominent.

Laser Particle Counters:

Laser Particle Counters employ laser technology for precise particle detection and measurement. This technology is highly effective in identifying particles of varying sizes and provides real-time data on air quality. Laser particle counters are widely used in cleanroom applications, where regulatory compliance is critical. Their ability to detect even the smallest particles makes them an essential tool in industries where air quality directly impacts product quality. As technological advancements continue to improve the performance of laser particle counters, their adoption across various sectors is expected to grow, particularly in environments requiring stringent air quality management.

Ultrafine Particle Counters:

Ultrafine Particle Counters are specialized devices designed to measure ultra-small particles, typically measuring less than 100 nanometers in diameter. These instruments are crucial for applications where monitoring ultra-fine particulate matter is essential, such as in research laboratories and industries dealing with nanotechnology. As public awareness regarding the health impacts of ultrafine particles increases, the demand for these counters is likely to grow. Their ability to provide detailed insights into the concentration and composition of ultrafine particles makes them invaluable tools for researchers and regulatory agencies alike. The market for ultrafine particle counters is expected to expand as industries and governments continue to prioritize air quality monitoring.

By Region

The North American Airborne Particle Counter market is projected to witness significant growth, with an estimated market share of approximately USD 450 million by 2035, growing at a CAGR of 8% during the forecast period. The region benefits from stringent regulations regarding air quality management, particularly in industries such as pharmaceuticals and food processing, that necessitate regular monitoring of airborne particles. The presence of a robust industrial base, coupled with growing consumer awareness of air quality issues, drives the demand for airborne particle counters across both residential and commercial applications. Furthermore, continuous technological advancements and innovations in monitoring solutions will contribute significantly to the market's growth in North America.

Europe is also expected to be a significant player in the Airborne Particle Counter market, with a projected market size of about USD 300 million by 2035. The European market is characterized by a substantial focus on environmental sustainability and compliance with stringent air quality regulations. Governments across Europe are increasingly investing in air quality monitoring initiatives, leading to enhanced adoption of airborne particle counters in various sectors. The emphasis on indoor air quality, particularly in urban areas, is expected to serve as a catalyst for growth in this region, as organizations and consumers alike prioritize healthier living and working environments. Efforts to promote cleanroom environments in industries such as biotechnology and pharmaceuticals will further support market expansion.

Opportunities

There are numerous opportunities for growth in the Airborne Particle Counter market driven by an increasing demand for air quality monitoring solutions across various sectors. As urbanization continues to rise globally, cities are facing heightened challenges associated with air pollution, leading to increased public awareness and demand for effective monitoring tools. This growing concern presents an opportunity for manufacturers of airborne particle counters to innovate and develop advanced monitoring solutions that cater to the needs of urban dwellers and industries. Additionally, the development of smart technologies and IoT solutions allows for the integration of airborne particle counters into comprehensive air quality monitoring systems, enabling real-time data collection and analysis. Companies that invest in research and development to enhance the capabilities of their products can take advantage of this burgeoning market opportunity.

Moreover, the increasing emphasis on sustainability and environmental protection is creating new avenues for airborne particle counter manufacturers to explore. Organizations are increasingly required to comply with stringent environmental regulations, which drives the demand for reliable monitoring solutions. In particular, sectors such as construction, agriculture, and manufacturing are recognizing the need for effective air quality management to minimize their environmental impact. As a result, manufacturers can target these sectors with tailored airborne particle counter solutions that meet specific regulatory requirements. The growing trend toward green building certifications and indoor air quality standards will also create opportunities for companies in this market to expand their product offerings and reach new customer segments.

Threats

Despite the promising growth prospects for the Airborne Particle Counter market, several threats could impede progress. One significant challenge is the presence of strong competition from alternative air quality monitoring solutions, including cheaper or less precise devices that may not offer the same level of accuracy as airborne particle counters. As consumers become more price-sensitive, they may opt for these alternatives, potentially undermining the sales and market share of established airborne particle counter manufacturers. Furthermore, the rapid pace of technological advancements in the field could result in the emergence of disruptive technologies that render existing products obsolete. Companies in this market must stay ahead of the curve and continuously innovate to maintain their competitive edge.

Another potential threat is the fluctuation in raw material prices, which could impact production costs for airborne particle counters. In recent years, supply chain disruptions have affected various industries, leading to increased costs and delays in manufacturing processes. As the demand for airborne particle counters grows, companies may find it difficult to secure necessary materials and components at reasonable prices. This challenge could hinder their ability to meet rising customer demands and impact overall market growth. Additionally, regulatory changes or shifts in consumer preferences could also pose risks, making it essential for companies to be adaptable and responsive to evolving market conditions.

Competitor Outlook

• Parker Hannifin Corporation
• TSI Incorporated
• Fluke Corporation
• Kanomax USA, Inc.
• Met One Instruments, Inc.
• Beckman Coulter, Inc.
• Horiba, Ltd.
• Particle Measuring Systems, Inc.
• 3M Company
• Aeroqual Ltd.
• Air Monitors, Inc.
• Grimm Aerosol Technik GmbH
• EcoTech Instruments
• Mitsubishi Chemical Corporation
• Testo SE & Co. KGaA

The competitive landscape of the Airborne Particle Counter market is marked by the presence of several key players that continuously strive to innovate and enhance their product offerings. These companies compete not only on the basis of product performance and accuracy but also on factors such as customer service, brand reputation, and regulatory compliance. Leading manufacturers are investing significantly in research and development to create advanced monitoring solutions that leverage cutting-edge technologies such as IoT connectivity and machine learning algorithms. This ongoing emphasis on innovation is crucial for maintaining competitiveness in a rapidly evolving market that is increasingly focused on addressing air quality concerns.

Moreover, strategic partnerships and collaborations between companies are becoming more prevalent as organizations seek to expand their market reach and improve their product offerings. By forming alliances with industry stakeholders, companies can leverage complementary strengths and gain access to new markets, facilitating growth and expanding their customer base. The integration of advanced technologies into airborne particle counters, such as wireless connectivity and data analytics capabilities, further enhances their appeal and functionality, making them attractive to a broader range of industries. As competition intensifies, companies will need to adopt agile strategies to stay ahead of market trends and respond effectively to evolving customer demands.

Some of the major companies operating in the Airborne Particle Counter market include TSI Incorporated, known for its high-quality optical particle counters used in various applications, and Kanomax USA, which specializes in advanced air quality monitoring solutions. Parker Hannifin Corporation is recognized for its extensive range of environmental monitoring technologies, while Fluke Corporation offers reliable handheld and portable air quality monitoring devices. Additionally, Particle Measuring Systems, Inc. has established itself as a leader in providing contamination monitoring solutions across various sectors, including pharmaceuticals and cleanroom environments. These companies, along with others in the market, are committed to delivering innovative and effective airborne particle counter solutions that meet the increasing demands for air quality monitoring across the globe.

• 1 Appendix

  • 1.1 List of Tables
  • 1.2 List of Figures

• 2 Introduction

  • 2.1 Market Definition
  • 2.2 Scope of the Report
  • 2.3 Study Assumptions
  • 2.4 Base Currency & Forecast Periods

• 3 Market Dynamics

  • 3.1 Market Growth Factors
  • 3.2 Economic & Global Events
  • 3.3 Innovation Trends
  • 3.4 Supply Chain Analysis

• 4 Consumer Behavior

  • 4.1 Market Trends
  • 4.2 Pricing Analysis
  • 4.3 Buyer Insights

• 5 Key Player Profiles

  • 5.1 3M Company
    • 5.1.1 Business Overview
    • 5.1.2 Products & Services
    • 5.1.3 Financials
    • 5.1.4 Recent Developments
    • 5.1.5 SWOT Analysis
  • 5.2 Horiba, Ltd.
    • 5.2.1 Business Overview
    • 5.2.2 Products & Services
    • 5.2.3 Financials
    • 5.2.4 Recent Developments
    • 5.2.5 SWOT Analysis
  • 5.3 Aeroqual Ltd.
    • 5.3.1 Business Overview
    • 5.3.2 Products & Services
    • 5.3.3 Financials
    • 5.3.4 Recent Developments
    • 5.3.5 SWOT Analysis
  • 5.4 TSI Incorporated
    • 5.4.1 Business Overview
    • 5.4.2 Products & Services
    • 5.4.3 Financials
    • 5.4.4 Recent Developments
    • 5.4.5 SWOT Analysis
  • 5.5 Fluke Corporation
    • 5.5.1 Business Overview
    • 5.5.2 Products & Services
    • 5.5.3 Financials
    • 5.5.4 Recent Developments
    • 5.5.5 SWOT Analysis
  • 5.6 Kanomax USA, Inc.
    • 5.6.1 Business Overview
    • 5.6.2 Products & Services
    • 5.6.3 Financials
    • 5.6.4 Recent Developments
    • 5.6.5 SWOT Analysis
  • 5.7 Air Monitors, Inc.
    • 5.7.1 Business Overview
    • 5.7.2 Products & Services
    • 5.7.3 Financials
    • 5.7.4 Recent Developments
    • 5.7.5 SWOT Analysis
  • 5.8 EcoTech Instruments
    • 5.8.1 Business Overview
    • 5.8.2 Products & Services
    • 5.8.3 Financials
    • 5.8.4 Recent Developments
    • 5.8.5 SWOT Analysis
  • 5.9 Testo SE & Co. KGaA
    • 5.9.1 Business Overview
    • 5.9.2 Products & Services
    • 5.9.3 Financials
    • 5.9.4 Recent Developments
    • 5.9.5 SWOT Analysis
  • 5.10 Beckman Coulter, Inc.
    • 5.10.1 Business Overview
    • 5.10.2 Products & Services
    • 5.10.3 Financials
    • 5.10.4 Recent Developments
    • 5.10.5 SWOT Analysis
  • 5.11 Met One Instruments, Inc.
    • 5.11.1 Business Overview
    • 5.11.2 Products & Services
    • 5.11.3 Financials
    • 5.11.4 Recent Developments
    • 5.11.5 SWOT Analysis
  • 5.12 Grimm Aerosol Technik GmbH
    • 5.12.1 Business Overview
    • 5.12.2 Products & Services
    • 5.12.3 Financials
    • 5.12.4 Recent Developments
    • 5.12.5 SWOT Analysis
  • 5.13 Parker Hannifin Corporation
    • 5.13.1 Business Overview
    • 5.13.2 Products & Services
    • 5.13.3 Financials
    • 5.13.4 Recent Developments
    • 5.13.5 SWOT Analysis
  • 5.14 Mitsubishi Chemical Corporation
    • 5.14.1 Business Overview
    • 5.14.2 Products & Services
    • 5.14.3 Financials
    • 5.14.4 Recent Developments
    • 5.14.5 SWOT Analysis
  • 5.15 Particle Measuring Systems, Inc.
    • 5.15.1 Business Overview
    • 5.15.2 Products & Services
    • 5.15.3 Financials
    • 5.15.4 Recent Developments
    • 5.15.5 SWOT Analysis

• 6 Market Segmentation

  • 6.1 Airborne Particle Counter Sales Market, By Technology
    • 6.1.1 Optical Particle Counters
    • 6.1.2 Condensation Particle Counters
    • 6.1.3 Laser Particle Counters
    • 6.1.4 Ultrafine Particle Counters
    • 6.1.5 Others
  • 6.2 Airborne Particle Counter Sales Market, By Application
    • 6.2.1 Indoor Air Quality Monitoring
    • 6.2.2 Cleanroom Monitoring
    • 6.2.3 Outdoor Air Quality Monitoring
    • 6.2.4 Contamination Monitoring
    • 6.2.5 Others
  • 6.3 Airborne Particle Counter Sales Market, By Product Type
    • 6.3.1 Portable Airborne Particle Counters
    • 6.3.2 Handheld Airborne Particle Counters
    • 6.3.3 Remote Airborne Particle Counters
    • 6.3.4 Desktop Airborne Particle Counters
    • 6.3.5 Wearable Airborne Particle Counters
  • 6.4 Airborne Particle Counter Sales Market, By Distribution Channel
    • 6.4.1 Online Stores
    • 6.4.2 Offline Stores

• 7 Competitive Analysis

  • 7.1 Key Player Comparison
  • 7.2 Market Share Analysis
  • 7.3 Investment Trends
  • 7.4 SWOT Analysis

• 8 Research Methodology

  • 8.1 Analysis Design
  • 8.2 Research Phases
  • 8.3 Study Timeline

• 9 Future Market Outlook

  • 9.1 Growth Forecast
  • 9.2 Market Evolution

• 10 Geographical Overview

  • 10.1 Europe - Market Analysis
    • 10.1.1 By Country
      • 10.1.1.1 UK
      • 10.1.1.2 France
      • 10.1.1.3 Germany
      • 10.1.1.4 Spain
      • 10.1.1.5 Italy
  • 10.2 Asia Pacific - Market Analysis
    • 10.2.1 By Country
      • 10.2.1.1 India
      • 10.2.1.2 China
      • 10.2.1.3 Japan
      • 10.2.1.4 South Korea
  • 10.3 Latin America - Market Analysis
    • 10.3.1 By Country
      • 10.3.1.1 Brazil
      • 10.3.1.2 Argentina
      • 10.3.1.3 Mexico
  • 10.4 North America - Market Analysis
    • 10.4.1 By Country
      • 10.4.1.1 USA
      • 10.4.1.2 Canada
  • 10.5 Middle East & Africa - Market Analysis
    • 10.5.1 By Country
      • 10.5.1.1 Middle East
      • 10.5.1.2 Africa
  • 10.6 Airborne Particle Counter Sales Market by Region

• 11 Global Economic Factors

  • 11.1 Inflation Impact
  • 11.2 Trade Policies

• 12 Technology & Innovation

  • 12.1 Emerging Technologies
  • 12.2 AI & Digital Trends
  • 12.3 Patent Research

• 13 Investment & Market Growth

  • 13.1 Funding Trends
  • 13.2 Future Market Projections

• 14 Market Overview & Key Insights

  • 14.1 Executive Summary
  • 14.2 Key Trends
  • 14.3 Market Challenges
  • 14.4 Regulatory Landscape

Segments Analyzed in the Report

The global Airborne Particle Counter Sales market is categorized based on

By Product Type

• Portable Airborne Particle Counters
• Handheld Airborne Particle Counters
• Remote Airborne Particle Counters
• Desktop Airborne Particle Counters
• Wearable Airborne Particle Counters

By Application

• Indoor Air Quality Monitoring
• Cleanroom Monitoring
• Outdoor Air Quality Monitoring
• Contamination Monitoring
• Others

By Distribution Channel

• Online Stores
• Offline Stores

By Technology

• Optical Particle Counters
• Condensation Particle Counters
• Laser Particle Counters
• Ultrafine Particle Counters
• Others

By Region

• North America
• Europe
• Asia Pacific
• Latin America
• Middle East & Africa

Key Players

• Parker Hannifin Corporation
• TSI Incorporated
• Fluke Corporation
• Kanomax USA, Inc.
• Met One Instruments, Inc.
• Beckman Coulter, Inc.
• Horiba, Ltd.
• Particle Measuring Systems, Inc.
• 3M Company
• Aeroqual Ltd.
• Air Monitors, Inc.
• Grimm Aerosol Technik GmbH
• EcoTech Instruments
• Mitsubishi Chemical Corporation
• Testo SE & Co. KGaA