The immune system is made up of specialized cells and proteins. Some of these specialized cells include white blood cells such as lymphocytes (B cells and T cells) and phagocytes (neutrophils, monocytes, and macrophages). White blood cells are produced in the bone marrow. The complement system is a group of proteins found in the blood that are critical in defense against infection. When the immune system is missing any of these parts, people are vulnerable to specific types of diseases.
1 Depending on the brand and the type of humidifier, the costs of a humidifier are going to range anywhere from as little as $15 to as much as $150.2  Generally, table top humidifiers are going to be less than $50 while larger humidifiers that work up to 2,000 square feet can cost up to $150. Depending on the brand and the type of humidifier, the costs of a humidifier are going to range anywhere from as little as $15 to as much as $150.
In addition, a humidifier can lower your heating costs. You will find that moist air tends to feel warmer, so there's a good chance you can lower the thermostat setting and still be comfortable. A heating specialist will install a bypass, flow-through humidifier for $415, which includes labor and material.If you have experience working with sheet metal, electricity and plumbing, you can do the job for $215, the cost of a furnace humidifier.You will save 48 percent.n addition, a humidifier can lower your heating costs. You will find that moist air tends to feel warmer, so there's a good chance you can lower the thermostat setting and still be comfortable. A heating specialist will install a bypass, flow-through humidifier for $415, which includes labor and material.