AIR QUALITY, EXPLAINED
Better Air Starts With Better Data.
Understand indoor air quality, HVAC, environmental monitoring, and the technologies used to measure and control the air around us.
Get Started with BasicsEXPLORE AIRALIGN
Find the information you need.
Start with the fundamentals, explore air quality by environment, or research the products and manufacturers behind measurement and control technologies.
Basics
Understand air quality fundamentals, pollutants, measurements, ventilation, HVAC concepts, heating, cooling, and environmental conditions.
Explore Basics → 02Home Indoor Air Quality
Explore ventilation, CO₂, particulate matter, humidity, air purification, and other factors that influence air quality at home.
Explore Home Air Quality → 03Commercial Air Quality
Explore air quality monitoring and control in offices, commercial buildings, production environments, and specialized facilities.
Explore Commercial Air Quality → 04Products & Manufacturers
Research sensors, transmitters, controls, HVAC equipment, and the companies that manufacture them.
Explore Products & Manufacturers →PRODUCTS & TECHNOLOGY
Understand the technology behind better air.
Explore the devices and equipment used to measure environmental conditions, communicate data, and control indoor climate.
Sensors
CO₂, O₂, particulate matter, VOC, temperature, and humidity sensing technologies.
Transmitters
Measurement devices and signals used in HVAC, building automation, and monitoring systems.
Controls & HVAC Equipment
Thermostats, controllers, ventilation systems, air conditioners, and air handling equipment.
Manufacturers
Explore companies behind air quality measurement, control, and HVAC technologies.
FREE HVAC & AIR QUALITY TOOLS
Turn air quality questions into useful numbers.
Use our free interactive calculators to estimate cooling capacity, airflow, ventilation and moisture conditions. Quick, practical tools for homes and professional spaces.
HVAC BTU Calculator
Estimate room cooling capacity in BTU/h and kW using dimensions and room conditions.
Calculate Cooling Capacity → 02ACH Calculator
Find air changes per hour and the airflow required for your target ACH.
Calculate Air Changes → 03Airflow Converter
Convert CFM, m³/h and L/s for ventilation and fan performance.
Convert Airflow → 04Ventilation Calculator
Estimate outdoor airflow using people, floor area and editable design rates.
Estimate Fresh Air → 05Dew Point Calculator
Understand condensation conditions from temperature and humidity.
Calculate Dew Point → 06CO₂ Ventilation Calculator
Estimate steady-state outdoor airflow for a CO₂ concentration target.
Explore CO₂ Ventilation →STAY INFORMED
Go beyond the basics.
Follow relevant industry events and explore selected sources for deeper technical research.