The number one allergen that most people with asthma and allergies react to is dust mite droppings. Dust mites are microscopic parasites that live off of skin flakes that you shed. They live in your bedding, carpet, and furniture. Dust mite droppings are tiny and float in the air, where they can be breathed in and aggravate allergies and asthma.
Dust mites don’t drink water but absorb it from the air. They need over 50% relative humidity to live. While dust mites don’t live in your crawl space, they like your crawl space. Why? It is very difficult to keep your home dry when you have a dirt crawl space under it. It’s the life-giving humidity that allows dust mites to thrive upstairs in the living areas of your home. Dry the crawl space out and the air flowing up into the house is no longer wet. Therefore, the house dries out. The dust mites (which are like tiny water balloons) dry out and die, and of course, stop producing droppings. That is great news for asthma and allergy sufferers. To learn more about dust mites, please visit HouseDustMite.
Other pests also love the moisture in the crawl space. Termites love wet wood. Spiders love crawl spaces because they eat other bugs and there are usually plenty of them in a nice, damp, dirt crawl space. Mice, rats, and snakes also love the damp, dark crawl spaces too!