Supplied air respirators

Respirators come in two primary types air supplied or air purifying. Air supplied respirators provide the user with an external supply of clean breathing air, while air purifying respirators make use of adsorbents and fillers to remove chemical vapors and particulate from the air. Respirators are generally required where solvent or dust levels are high, where irritating odors are present, and where materials that are respiratory sensitizers are common. 

While handling a fnmigant indoors or in any enclosed area, nse an air-supplying respirator. In enclosed areas such as greenhouses, ship holds, railcars, bins, vaults, and chambers, there may not be enough oxygen for yon to breathe. Cartridge and canister respirators will not protect yon in these sitnations. 

Air-supplying respirators, which supply clean, uncontaminated air from an independent source. 

Air-supplying respirators are used in a few specialized situations where other types of respirators are not protective enough. Use an air-supplying respirator when the pesticide labeling tells you to do so. In addition, you should use one when handling pesticides ... 

This type of respirator supplies clean air from cylinders that you carry, usually on your back. This lets you move more freely and over a wider area than you can with a supplied-air respirator. Get training from competent instructors before using any type of respiratory protection, especially self-contained breathing equipment. These devices contain a limited air supply (usually about 30 minutes), which may be used up even more quickly in high temperatures or with excessive exertion. Figure 6.13 shows the different air-supplying respirators, the airline and self-contained breathing apparatus. 

Air-supplying respirators, airline and self-contained breathing... 

Powered air-purifying respirators use a blower to draw air to the user. PAPRs should not be confused with air-supplying respirators, because they do not supply clean air. The air is cleaned by cartridges or canisters, as it is with other air-purifying respirators. These respirators are available as lightweight backpacks, or they may be mounted on or in application equipment where the power is supplied by the vehicle s electrical systems. 

Cartridge respirator Respirator with organic vapor-removing cartridge and pesticide prefilter, or respirator with canister approved for pesticides, or air-supplying respirator... 

Air-supplying respirator or self-contained breathing apparatus (SCBA) Air-supplying respirator, or self-contained breathing apparatus (SCBA)... 

First-aid should be carried out by an appropriately trained person who has the necessary knowledge to understand the basis for the primary care. The first-aider (rescuer) should be wearing protective equipment, ideally skin protection (including gloves) and an absorbent filter or, preferably, air-supplied respirator self-contained positive pressure breathing apparatus (Ballantyne and Salem, 2005 Hall and Rumack, 1998). The first-aider should ensure the following ... 

Acetone Organic vapor canister or air-supplied respirator, synthetic rubber gloves, chemical safety goggles or face splash shield. Vapor irritating to eyes and mucous membranes acts as an anesthetic in very high concentrations. Wash with clean running water. Rush with water for at least 15 minutes and consult a physician. 

Dichloropropene An approved full face mask equipped with a fresh black canister meeting specifications of the U.S. Bureau of Mines for organic vapors, a full face self-contained breathing apparatus, or full face air-supplied respirator. Remove patient to fresh air, keep warm and quiet call physician immediately give artificial respiration if breathing has stopped. Immediately remove contaminated clothing and shoes. Wash skin with soap and plenty of water. For eyes, flush immediately with plenty of water for at least 15 minutes. Call a physician. 

PERSONAL PROTECTION wear protective clothing and chemical safety goggles wear an air-supplied respirator of self-contained breathing apparatus. 

PERSONAL PROTECTION Wear chemical-resistant gloves and clean body-covering clothing use chemical safety goggles and/or a full face shield enclose operations and/or use local exhaust ventilation at site of chemical release use non-sparking type tools and equipment, including explosion proof ventilation wear positive-pressure, air-supplied respirator maintain eyewash baths and safety showers in work area. 

PERSONAL PROTECTION Wear gaslight suit and viton7 rubber gloves wear approved chemical safety goggles material should be handled or transferred in an approved fume hood or with adequate ventilation electrically ground all equipment when handling this product a NIOSH approved air supplied respirator is recommended in absence of proper environmental controls maintain eyewash baths and safety showers in work area. 

B. Protective respiratory gear may be a simple paper mask, a cartridge filter respirator, or a positive-pressure air-supplied respirator. Respirators must be properly fitted for each user. 

Air-supplied respirators provide an independent source of clean air. They may be fully self-contained units or masks supplied with air by a long hose. A self-contained breathing apparatus (SCBA) has a limited duration of air supply, from 5 to 30 minutes. Users must be fitted for their specific gear. 

Respiratory protection. A disposable paper-type mask is inadequate for most exposures. A screw-in cartridge-type mask for which the cartridges are rarely changed is also unlikely to be effective. For an air-supplied respirator with an air supply hose, ascertain the location of the air intake. 

Respirators with an air source are called air-supplied respirators and consist of two types, the (1) SCBAs which gets its air supply from a source (tank or bottle) carried by the user, and (2) the SAR, which is connected to the user by an air hose connected to a distant air supply. It is sometimes referred to as an airline respirator. 

Procedures for adequate air quality and flow to air-supplied respirators Training of employees to respirator hazards to which they are exposed during routine and emeigency situations... 

An air-supplied respirator is intended to provide a source of breathing air to the user independent of the air in the surrounding space so that they can be used in oxygen-deficient atmospheres. However, depending upon the design they may or may not be approved forlDLH atmospheres. 

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