Specifications:

• Healthy home or office? - Does your family suffer from sick building syndrome? By measuring PM2.5 particle pollution, an air pollution monitor can help you know when your asthma may worsen and when you should change your home's air filter. Check the safety of guests or customers by measuring exhaled carbon dioxide levels that rise when ventilation is inadequate. Air ventilation can greatly reduce the transmission of any airborne pathogens within your indoor spaces.
• Multifunctional and Scientific - This indoor air quality monitor accurately assesses temperature, relative humidity level, and multiple air quality measurements, including concentrations of carbon dioxide (CO2) and fine dust particles (PM2.5) that they travel deep into the respiratory tract, reaching the pulmonary alveoli and causing allergies and asthma exacerbations.
• Portable Testing - Check indoor air quality anywhere. This easy-to-carry device can help monitor air quality at home, in the car, and in hotel rooms. The lithium battery provides portable power when 5V DC charging via micro USB is not available.

CO2 Air Quality Monitor, PM2.5 Particles and Ventilation, Temperature and Humidity Sensor, Measures Indoor Ventilation Levels with CO2 PPM and PM2.5 Micron Dust