How dry air affects our skin

Low humidity can absorb moisture from the top layer of our skin, making it dry. The results vary from slight roughness to peeling or even skin cracking. Irritating dry skin can become itchy, which can lead to injury or bleeding through continuous destructive scraping Usually in winter, when indoor humidity drops, the skin becomes dry. Due to the low moisture content of the external cold air, it enters the building and is heated, resulting in a relative humidity drop below 40% RH. Dry and cracked skin loses its protective physical barrier function. Microorganisms, allergens, and harmful chemicals can penetrate cracks, causing infections, allergic and toxic skin diseases The heating season is the peak season for most skin diseases. Drying increases the sensitivity of the skin to various injuries caused by air and direct radiation

Maintaining 40-60% relative humidity in the indoor environment can prevent our skin from drying and subsequent harmful effects