The difference between whether there is water in the lungs

With each breath taken on land, your body will naturally release and replenish humidity continuously. The average humidity (moisture) level worldwide is approximately 70%. But Compressed air within a tank has a humidity level of less than 0.1% which is far below the humidity in the atmosphere.Therefore, during a dive our Guardian Air Filter Moisture System is able to increase humidity continuously.

Notice

AQUATEC Guardian Air Filter Moisture System is installed between the High pressure scuba air tank Low Pressure port and the Second stage regulator. After each dive, be sure to remove the Air Filter Moisture cartridge completely dry and then stored in a dry environment.

Figure 2.

The AQUATEC Guardian Air filter moisture system is dampened by user prior to installation. There is an Air Chamber design at the bottom of Guardian Air Filter Moisture System to provide a smooth and high volume air to breathe (Patented). Each breath draws a little moisture from the cartridge and adds it to the air stream to increase humidity.

Installation Precautions

AQUATEC Guardian Air Filter Moisture System is installed in the middle of the First Stage Low-Pressure (L/P) outlet and the Second Stage Low Pressure Hose. After diving, remove the cartridge, completely dry and store it in a dry environment.

How to inject distilled water into the air filter moisture system

Guardian Air Filter Moisture System. The system contains a 5 cc/ml medical grade syringe, fill distilled water or bottled water and then equips water content into the filter humidification cartridge. The amount of water is about 5cc/ml. Guardian Air Filter Moisture System net weight of 7.0 grams, full of moisture content of 12.0 grams.

Installation location

Aquatec Bio Filter Moisture System

Package Contents

Color box*1, Bio filter moisture system*1, Cartridge*1, Water injector*1

Packaging Style

Color box: Weight 140 Grams, Dimensions: 102 x 102 x 40 mm.

Size description

Main housing: 3/8" x 24w / 88 x 21.5 mm / Weight: 90 Grams./Catrodge:18.5 x 44.5. mm / 7 Grams / Filled water weight: 12 Grams.

Filter protection efficiency classification

National Institute for Occupational Safety and Health (NIOSH) new standards for dust and respiratory protection 42CFR84 published on June 8, 1995 (according to filter classification)

EU EN149 standard:Classification and Protection Efficiency of EU FFP Protective Filter

The EU's respiratory protection test, the dust filter material is divided into P1, P2 and P3 three, the simple filter is divided into FFP1, FFP2 and FFP3 three.

General Cotton yarn filter

These filter masks are the easiest to find filter masks in retail stores that sell general health products because the filter masks are not treated with extra processing and their fibrous pores are quite large (about 1 micron), so they can not be effectively prevented Airborne pathogens. In addition, the general masks for easy access to human respiratory system dust, and no protective effect, but for the large particles of dust, or have some blocking effect. This mask can be used as warmth, to avoid the use of dirty and dirty nose and other purposes, but cannot be used as a way to prevent the invasion of bacteria. However, the test shows that the general mask on the particle size of less than 100 nm (nm) of the virus, it seems that there is still a certain blocking effect.

Activated carbon filter

Activated carbon has a porous structure. The main function of the filter layer is to adsorb organic gases, malodorous molecules, and toxic dust, not used to filter dust, no sterilization function. Moreover, the use of activated carbon there is a limit, once all the pores are filled, they lose their utility, this time must replace the activated carbon filter, but when to reach the saturation point is not easy to judge. Activated carbon will attract the virus particles to the surface of the filter mask, but cannot "kill the virus", so the hands, eyes, nose or mouth accidentally exposed to the surface of the activated carbon masks, is still likely to cause disease transmission.

Medical filter

Medical filter masks mainly to avoid the doctor's droplets affect the patient, the functional design is not to avoid the inhalation of granular harmful substances, although the effect is better than cotton masks and cloth print masks, but at most only 70% of the effect, Take this filter to block the bacteria, the effect may be very limited. The standard surgical medical filter mask is divided into three layers, the outer layer has the role of blocking water and water blocking, to prevent the droplets into the filter inside the mask, the middle layer of the filter can block more than 90% of the 5 micron particles, near the nose and mouth as a layer of moisture use.

Charged filter

According to the filter masks the main manufacturer company provides the information shows that the main function of the filter is to facilitate breathing, rather than filtering. This mask actually has a filtering effect, is located in the next layer of carbon material. The filtration mechanism may be the same as the activated carbon mask, which means that it has the same use restrictions as the activated carbon masks. There is also a so-called "attached resistance filter material", its role is to extend the life of the mask and increase comfort.A different mask of the filtering effect is different, but the various types of masks filtering air in different particle size of the filter efficiency, are showing a U-shaped curve. This represents the general public recognition of different filter media for the efficiency of particle filter comparison of large particle size and particle size are relatively easy to be filtered, but rather different types of filter material has a easiest to filter the particle size The particles in the air move continuously fast and irregularly, thus increasing the chance of collision between the particles, causing the mo+AE4vement trajectory to exhibit irregular movement or beating. This irregular movement or jumping significantly improves the chance of contact between the particles and the filter The Particle irregular trajectory for the larger particles of impurities, the greater the possibility of being filtered out is justified, but the small particle size of impurities is also very easy to filter out through the mask. Filter dust way to filter theory, the dust filter has five main mechanisms.

How to filter dust

In 1827, the British botanist Robert Brown used the microscope to observe the pollen grains hanging on the surface of the water and found that these pollen particles would be continuous, fast and irregularly moving The movement is called Brownian motion. Tiny particles in the air will be the impact of air and intense twists and turn movement, the effect of the smaller the more obvious particles. Because all the particles in the air (about 1019 gas molecules or particles per cubic centimeter) are moving at a fairly fast rate, the collision between the particles is increased so that their trajectories exhibit irregular movement or beating, This irregular movement or beating significantly enhance the chance of contact between the particles and the filter, so the effect of the smaller particles, the stronger.

The basic principle of interception is based on the size of the particles to be intercepted to do an effective separation, so this effect is basically with the size of the filter hole is different. If the particle size of the particle is larger than the hole of the filter material, it will be blocked on the filter surface, so the larger the particle, the better the filtration effect.

inertia is the sustained nature of the movement of the particle itself, if the gas and suspended particles in the same speed impact filter cloth or filter, the gas will be with the filter in the hole to change its flow direction, then larger particles Because of inertia, resulting in its still maintained in the original flow direction, and thus hit the filter, to filter the function. For this effect, the bigger the particles, the better the filtration effect.

Particles' gravitational attraction effect is the same as gravitational attraction, so the bigger the particles, the better the effect.The electrostatic attraction between the particles in the gas and the filter fibers is also more obvious for the smaller and lighter particles. This phenomenon is similar to that of the electrostatic dust collection technique, and the effect of the collection of fines particles (90 %) the same. Basically, the movement of the particles in the gas is affected by the flow direction of the gas and the effect of the surrounding electric field on its forces. It can be seen that if it is desired to collect the particles with static electricity in a flowing gas, the above-mentioned inertial forces must be overcome. However, the inertial forces of the particles with larger particle size can, of course, be free from the flow of the gas, Electrostatic attraction effect, so the electrostatic dust collector on the smaller the particle efficiency is higher. In addition, for extremely small particles in the gas does not even need to rely on Brownian motion to increase the impact of the filter to the opportunity, you can be attracted by electrostatic force, which also increases the filter for small particles of filtration capacity.

Classification of filter media

When the particle size is greater than one micron, the effect of interception, inertial impact and gravitational attraction are enhanced, so that the filter efficiency is high regardless of the material or grade of the filter.In contrast, smaller particles with a particle size less than 0.6 microns are more likely to be affected by Brownian motion diffusion and electrostatic attraction. Therefore, for different grades of a filter, the efficiency of the filter is the U-shaped curve. The lowest point in the curve is the most difficult to filter the particle size, referred to as MPPS (most penetrating particle size), MPPS size is generally about 0.3 microns, whether it is European regulatory EN149 or US regulatory NIOSH certification standards, are used MPPS As the standard for testing the filter. There are many different standards for the classification and labeling of filter media. Today's most common is the NIOSH verification and the EU FFP series grading.

Both filter and sterilization effect of the filter

If you want to find a considerable sterilization function of the filter, the recent so-called nano-Photocatalyst filter material was born; the principle is the use of photocatalytic reaction to breaking down harmful substances and sterilization. The photocatalytic reaction is carried out by means of a semiconductor photoconductor as a catalyst to achieve the purpose of oxidizing or reducing the adsorbate. Many semiconductor optoelectronic ceramics can be used as the photocatalyst, such as titanium dioxide (TiO2), zinc oxide (ZnO), cadmium sulfide (CdS) and so on. At present, the most used photocatalyst for the titanium dioxide, which in addition to a very strong oxidation and reduction capacity, in addition to a stable, environmentally friendly, low price and so on. Photocatalysts in the wavelength of less than 400 nm ultraviolet radiations, the valence electron band electrons are excited by the energy of ultraviolet three electron volts, and jump to the conduction band, this time the price of the electronic band will produce a positive hole, and forming a pair of electron-hole pairs. Titanium dioxide using the hole of the oxidation force and the reduction of electrons, and contact with the surface of the water, oxygen occurs, resulting in strong oxidizing force of free radicals, and with sterilization, deodorization, decomposition of organic matter and other functions, the carbon Hydrogen compounds break down into carbon dioxide and water, and also have a very high bactericidal ability.

Certifica

PAT.M55319