Indoor Air Quality Test

PM with particle sizes less than 10 microns, which are known as respirable suspended particulates or PM10, can get deep into the lungs and cause a broad range of health effects, in particular, respiratory and cardiovascular illnesses.

Fine particulate matter (PM2.5) is an air pollutant that is a concern for people's health when levels in air are high. PM2.5 are tiny particles in the air that reduce visibility and cause the air to appear hazy when levels are elevated.

PM0.3 refers to as ultra fine particles in the air as small as 0.3 microns in diameter, only 1/200 the diameter of hair. PM0.3 can penetrate through lung directly into the bloodstream, causes great impact on our health.

Formaldehyde is a colorless, flammable gas at room temperature and has a strong odor. Exposure to formaldehyde may cause adverse health effects. Formaldehyde can cause irritation of the skin, eyes, nose, and throat. High levels of exposure may cause some types of cancers.

Total Volatile Organic Compounds (TVOCs) are a large group of chemicals that are found in many products we use to build and maintain our homes. Once these chemicals are in our homes, they are released into the indoor air we breathe. They may or may not be able to be smelled, and smelling is not a good indicator of health risk.

If the indoor CO2 level exceeds 1000 ppm (parts per million), it means that the ventilation rate is too low and it would cause unpleasant feeling and fatigue . At the same time, it represents some airborne pollutants such as suspended particles, virus, bacteria and volatile organic compounds are accumulating causing health concern.

Ozone is a molecule composed of three atoms of oxygen. When inhaled, ozone can damage the lungs. Relatively low amounts can cause chest pain, coughing, shortness of breath and throat irritation. Ozone may also worsen chronic respiratory diseases such as asthma and compromise the ability of the body to fight respiratory infections.

NO2 primarily gets in the air from the burning of fuel. NO2 forms from emissions from cars, trucks and buses, power plants, and off-road equipment. NO2 is an important air pollutant because it contributes to the formation of photochemical smog, which can have significant impacts on human health.

Either too hot or too cold room temperature can make people feel discomfort and sick. As matter of fact, temperature does play a critical role to our health being. 

Humidity is an important indoor air quality parameter. High humidity will promote grow of molds and fungi as well as virus and bacteria in the indoor area.