Which of the following most affects respiratory health?

VOCs are organic chemicals that can evaporate or vaporize into the air at room temperature. They can be emitted from various sources such as building materials, furnishings, paints, cleaning products, personal care products, tobacco smoke, and combustion appliances. Exposure to VOCs can cause irritation of the eyes, nose, and throat, headaches, nausea, dizziness, and respiratory problems. Some VOCs are also known or suspected carcinogens. According to the WELL v2 standard, reducing indoor VOC concentrations can improve respiratory health and well-being12.

References:

Standard | WELL V2: This is the official source of the WELL v2 standard, where Feature A03: Volatile Compound Reduction is described in detail.

What’s new in WELL v2: Air | Articles | WELL International WELL …: This is an article that explains the rationale and benefits of the new Air features in WELL v2, including VOC reduction.