There are many models to choose from, each with different functionalities and protection levels.

Respirators are easy to find in big-box stores and offer protection against noxious gases as well as particulates.

Escape Hoods Single-Use Masks that can be used to escape from a burning building. They last anywhere from 15 to an hour.

Full Face Gas Masks or NBC masks stands for Nuclear, Biological, and Chemical. CBRN stands for Chemical, Biological Radiological, and Nuclear.

There are many good respirators and gas masks available online on Gas Mask Pro.

We are getting warmer here. Some respirators don't cover your face and could pose a problem if you are exposed to severe conditions. When someone else buys one, escape hoods can be cool. These can be quite expensive. They are an excellent investment if you live in a high-rise building, especially if your children are involved.

Dust masks are inexpensive and easy to locate. They can be used for dust removal or light construction.

Surgical masks are designed to keep blood out of the wearer's mouth or prevent the doctor from spreading germs to a patient.

Which of these masks is most useful? While there are some strong dust masks worth considering, surgical masks will not adequately protect your lungs.

Now we're getting to the good stuff. This is about as serious as you can get without having a scuba tank on your back. If your funds allow it, this is where you want to wind up: with a high-quality mask and lots of filters to go along with it.

An exercise stepper machine is a very useful piece of home exercise equipment that simulates the feeling of climbing stairs while exercising your legs. Unlike treadmills, a stepper machine does not need to be plugged in. A stepper also doesn't demand wearing of special clothing or a hard hat. A stepper's weight is supported by the user, so it doesn't take much effort on the part of the user to keep it moving in an efficient motion.

The exercise step works the quadriceps and hamstrings at the front of the pelvis. These are two large muscles located in the front of the abdomen, just below the neck. Because of this location, these muscles are more worked than any other muscle group in the body. A regular jogging around the block or walking up a hill can tone these muscles pretty well, but those same exercises will not have nearly the same benefits when performed with an exercise stepper. A stepper requires very little time for each workout and can give a very well balanced workout for all the leg muscles in the body. This is very important because the muscles in this area are working in different areas of the body at the same time.

Make sure you purchase one that is easy to use. There are some step exercise machines that are very heavy and may be difficult for even the most coordinated person to use. Also, make sure that the height of the exercise stepper corresponds with the amount of weight you put on it. Many people like to use these machines for weight loss instead of jogging. But if you are looking to increase your height, you want to make sure that it has the same weight as your additional raiser blocks that you will be putting on it.

Some of these machines also come with a lifting plate. This is a great way to add more weight on the machine and can really help to tone up your legs. The great thing about lifting plates is that it helps to build muscle mass in all of the muscles on your body. This is one of the best ways to improve your total appearance since you are lifting the weight from all angles.

Another very popular form of workout using an exercise stepper includes cycling. Cycling not only works out all of your major muscle groups, but it works out the entire cardiovascular system. It is also great for increasing endurance and adding strength to your core. Using a fitness stepper along with cycling will give you a much more balanced workout than you could do by just working out your legs alone.

If you are interested in losing fat, you probably would like to get rid of extra flab on your thighs and upper body. A great way to achieve this goal is through increasing your body weight. The great thing about using an exercise stepper along with weight training is that it helps to strengthen the glutes. The glutes are located between your knees and your hips. This is a very important muscle group that plays a very large role in your overall physique.

There are several different reasons why using an exercise stepper along with weight training is a great way to increase your glutes. One reason is that it adds additional length to your stride. Think about how you tend to walk when walking. Do you ever notice that your stride tends to long for a bit? This is caused by your glutes shortening as you walk.

Another reason to use an exercise stepper with a regular workout routine is because it makes for a very challenging routine. You can adjust the resistance level of these units very easily to challenge your legs. Some models allow you to change resistance levels while still exercising your abs. You may also want to consider using an additional bonus feature that some models include which are referred to as the misfit aerobic exercise steppers. These units automatically adjust resistance to simulate the bounce you would get from running out in the open air.