PM2.5 particles in the air

PM2.5 particles in the air

PM2.5 refers to particles in the air that have a diameter of 2.5 micrometers or less. These particles are small enough to inhale and can cause serious health problems. When PM2.5 particles are inhaled, they can penetrate deep into the lungs and even enter the...
Standard for ventilation and indoor air quality

Standard for ventilation and indoor air quality

ASHRAE 62.1 is a standard for ventilation and indoor air quality in commercial and institutional buildings. It sets guidelines for the design, construction, and operation of building systems to ensure that indoor air is safe and comfortable for occupants. The standard...