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Most gas masks use sealing caps over the air intake to prevent the filter from degrading before use, but the protective abilities also degrade as the filter ages or if it is exposed to moisture and heat.
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Most and gas
Most aliphatic compounds are flammable, allowing the use of hydrocarbons as fuel, such as methane in Bunsen burners and as liquified natural gas ( LNG ), and acetylene in welding.
Most of Bosnia's gas comes from Russia.
Most laboratory benches are equipped with multiple gas nozzles connected to a central gas source, as well as vacuum, nitrogen, and steam nozzles.
Most commonly, the adiabatic combustion temperatures for coals are around ( for inlet air and fuel at ambient temperatures and for ), around for oil and for natural gas.
Most cement kilns today use coal and petroleum coke as primary fuels, and to a lesser extent natural gas and fuel oil.
Most such failures are rapidly detected as decomposition within the can causes gas production and the can will swell or burst.
Most of the taxis in Hong Kong run on LPG ( liquified petroleum gas ) to reduce emissions.
Most notably, Wal-Mart does not have a loyalty card plan ( though someone who purchases a gift card can generally get a 3 cent discount per gallon of gas at the fuel stations located on Wal-Mart premises ).
* Most assault rifles and squad automatic weapons are gas operated.
Most natural gas was created over time by two mechanisms: biogenic and thermogenic.
Most open-circuit scuba and some rebreathers have a demand regulator to control the supply of breathing gas.
Most thermometers are originally calibrated to a constant-volume gas thermometer.
Most industrialized countries and some central European economies in transition ( all defined as Annex B countries ) agreed to legally binding reductions in greenhouse gas emissions of an average of 6 to 8 % below 1990 levels between the years 2008 – 2012, defined as the first emissions budget period.
Most of the ozone that is destroyed is in the lower stratosphere, in contrast to the much smaller ozone depletion through homogeneous gas phase reactions, which occurs primarily in the upper stratosphere.
Most markets are not so tied to the politics of volatile regions-even natural gas tends to be more stable, as it is not traded across oceans by tanker as extensively.
Most humans lose this enzyme in adulthood and milk consumed by those deficient in it encounter problems ( e. g., gas, pain, ...) when it becomes available to intestinal bacteria.
Most gas turbines are internal combustion engines but it is also possible to manufacture an external combustion gas turbine which is, effectively, a turbine version of a hot air engine.
Most used a neon-based gas mixture and counted in base-10, but faster types were based on argon, hydrogen, or other gases, and for timekeeping and similar applications a few base-12 types were available.
Most gas in coal is stored on the internal surfaces of organic matter.
Most military flamethrowers use liquids, but commercial flamethrowers tend to use high-pressure propane and natural gas, which is considered safer.
Most of the victims were Jews and Poles and the Zyklon B gas became a central symbol of the Holocaust.
Most gas odorants utilized currently contain mixtures of mercaptans and sulfides, with t-butyl mercaptan as the main odor constituent.
Most and masks
Most common are masks covering the upper face, leaving the mouth and jaw exposed.
Most commercial aircraft are fitted with oxygen masks for use when cabin pressurization fails.
" Most societies in Africa have names for their masks, but this single name incorporates not only the sculpture, but also the meanings of the mask, the dance associated with it, and the spirits that reside within.
Most solid masks require an adhesive to hold the mask in place while work is performed.
Most full face masks are adaptable for use with scuba or surface supply.
Most hookah diving uses a demand system based on a standard scuba second stage, but there have been special purpose free flow full face masks specifically intended for hookah diving ( see photos ).
Most full-face masks can be knocked off much less easily than an ordinary scuba mouthpiece or an ordinary eyes-and-nose diving mask ; but an excess of bulky projecting valvework may act as a lever for his head to be pushed around by.
Most surgical masks feature pleats / folds commonly 3 pleated are used allowing the user to expand the mask so it covers from the nose and under the chin.
Most masked wrestlers wear their masks for any and all public appearances using the mask to keep their personal life separate from their professional life.
Most commercial aircraft are fitted with oxygen masks for use when cabin pressurization fails.
Most performances take place outdoors ; they incorporate masks, puppetry, visual effects and live music.
Most and use
Most of it is panelized and utilizes standard materials, and requires the use of only simple tools.
Most notable for this use is the extinct giant fennel, silphium.
Most often, the term describes those who create within a context of the fine arts or ' high culture ', activities such as drawing, painting, sculpture, acting, dancing, writing, filmmaking, photography, and music — people who use imagination, talent, or skill to create works that may be judged to have an aesthetic value.
Most aircraft hijackers intend to use the passengers as hostages, either for monetary ransom or for some political or administrative concession by authorities.
Most modern English grammarians no longer use the Latin accusative / dative model, though they tend to use the terms objective for oblique, subjective for nominative, and possessive for genitive ( see Declension in English ).
Most ATM networks supporting SPVPs, SPVCs, and SVCs use the Private Network Node Interface or Private Network-to-Network Interface ( PNNI ) protocol.
Most ATM links use UNI cell format.
Most picoammeters use a " virtual short " technique and have several different measurement ranges that must be switched between to cover multiple decades of measurement.
Most autonomous buildings are designed to use insulation, thermal mass and passive solar heating and cooling.
Most cantilever bridges use a pair of continuous spans that extend from opposite sides of the supporting piers to meet at the center of the obstacle the bridge crosses.
Most Native beadwork is created for tribal use but beadworkers also create conceptual work for the art world.
Most games use a standardized and unchanging board ( chess, Go, and backgammon each have such a board ), but many games use a modular board whose component tiles or cards can assume varying layouts from one session to another, or even while the game is played.
Most oils and milk products that we use for cooking and eating like butter, cheese, ghee etc., are composed of fats.
Most bicycles use a chain to transmit power to the rear wheel.
Most utility knives are not well suited to use as offensive weapons, with the exception of some outdoor-type utility knives employing longer blades.
Most of the men were also skilled with the use of guns as they would hunt and also were able to protect their families with them.
Most of the thousands of human languages use patterns of sound or gesture for symbols which enable communication with others around them.
Most Christians ( Roman Catholics, Eastern Orthodox, Eastern Rite and Protestants alike ) accept the use of creeds, and subscribe to at least one of the creeds mentioned above.
Most uses of diamonds in these technologies do not require large diamonds ; in fact, most diamonds that are gem-quality except for their small size, can find an industrial use.
Most software has software documentation so that the end user can understand the program, what it does, and how to use it.
Most of these games however typically use a specially made deck of cards designed specifically for the game ( or variations of it ).
Most languages have exclusively pulmonic egressive consonants, which use the lungs and diaphragm, but ejectives, clicks, and implosives use different mechanisms.
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