Poor ventilation can worsen the effects of air irritants, which can disrupt sleep. Examples of air irritants include pet dander, pollen, and cigarette smoke, while dust mites do impact air quality. Therefore, two of the statements are true, while one is misleading. ;
Three statements regarding air irritants are true; poor ventilation can worsen their effects, they can disrupt sleep, and common irritants include pet dander, pollen, and cigarette smoke. However, the statement about dust mites is misleading, as they do impact air quality. Hence, options A, B, and D are correct, while C is not.
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