Using a dehumidifier can help reduce the moisture. Pollen Pollen can be insect-carried or airborne. It is a fine, powdery substance that allows certain trees, grasses, and weeds to reproduce. The airborne variety creates the most problems for allergy and asthma sufferers. Because the pollen particles are so small, they are easily inhaled, setting off an allergic response.
Pollen enters the home through open windows, on clothing, and hair, and on the fur of our pets.
Weather Asthma sufferers may find some types of weather conditions easier than others, depending on their triggers. As we inhale through the nose, the air is filtered, warmed, and humidified in the upper respiratory area before it enters the lungs. Cold, dry air can trigger asthma symptoms, as the muscles around the airways constrict in reaction to the temperature of the air. If you need to be outdoors in cold weather, covering your nose and mouth with a scarf or mask can help raise the temperature of the air inhaled. While a certain amount of humidity in the air makes it easier to breathe, a very high humidity level can lead to hyperventilation, which can set off an asthma attack.