An air purifier is a device which removes contaminants from the air.

He disappeared without a trace.

He disappeared without a trace.

Crusading journalists disappear without a trace.

Iran submitted the results of an atmospheric and air quality model that it used to calculate the transport of contaminants from the oil well fires to demonstrate that some of the contaminants reached the territory of Iran.

Do you see any trace of them ?

and Thamud , leaving no trace of them ,

and Thamud , leaving no trace of them ,

This allows the room to exhaust air that contains infinitesimal quantities of radioactivity and contaminants.

Have they lost any trace of common sense!

The trace of a nilpotent matrix is zero.

Do you now see any trace of them ?

There are also trace amounts of mercury in coal.

So do you see any remaining trace of them ?

Caught early and addressed promptly, leprosy need leave no trace.

More generally, a state can be represented by a so called density operator, which is a trace class, nonnegative self adjoint operator normalized to be of trace 1.

You can trace on their faces the joy of their bliss .

Such cooperation shall include accurate and prompt responses to trace requests .

He also managed to trace his family tree back to the 1830s.

It appears that the natural microbial community participates with the fungi to break down contaminants, eventually into carbon dioxide and water.

It appears that the natural microbial community participates with the fungi to break down contaminants, eventually into carbon dioxide and water.

At the same time, aquifers tapped for domestic use increasingly have unsafe levels of naturally occurring contaminants, including arsenic and fluoride.

Closely associated with the challenge of optimizing remediation is that of understanding how contaminants will behave as a result of natural processes.

Today, at least 6 million Brazilians trace their origins to the Levantine lands.

Any written trace from the past can be the object of intellectual history.

And We left behind a clear trace of it , for people who understand .

And We left behind a clear trace of it , for people who understand .

Implement tools and measures to enable authorities to trace the origin of cyberattacks

In general, carbon block filters are more effective at removing a larger number of contaminants, based upon the increased surface area of carbon.

The capacity for nanoparticles to function as a transport mechanism also raises concern about the transport of heavy metals and other environmental contaminants.

In determining incompatibility, consider the substances, containers, and contaminants that the substance or mixture might be exposed to during transportation, storage and use.

Years of bad news appear to have passed the Germans by without a trace.

No trace of the aircraft or the 32 people on board was ever found.

Most contaminants are coliform bacteria and faecal streptococcus, and among chemical ones, there are ammonia, nitrates, nitrites, rare heavy metals and other toxic agents.

Syria states that, as a result of exposure to the aforementioned airborne contaminants, sites of cultural and archaeological significance were damaged across the country.

OSCAR includes an oil spill physical fates sub model that estimates the distribution of contaminants on the water surface, on shorelines, in the water column and in sediments as well as exposure and population sub models which together estimate the effects of contaminants on eggs, larvae, juvenile and adult fish, wildlife and lower trophic level biota.

It can be used, for example, to trace the flow of gases within the lungs.

We hope that this summit's outcome will trace a clear road map towards that end.

Taking note of the special circumstances pertaining to the continued presence of radioactive contaminants in certain Pacific Islands Forum nations,See A 61 558, annex.

The first Jews in Jamaica trace their roots back to early 15th century Spain and Portugal.

For example, a Russian inventor produced a steam engine in 1766 and disappeared without a trace.

In part, amphibians are good indicators and more sensitive because they don't have protection from contaminants in the water no eggshells, no membranes and no placenta.

And here's a map of that condition, showing the contaminants in yellow and green, exacerbated by this new flow of storm surge and sea level rise.

First certain news of an urban settlement in Trani, however, trace back only to the 9th century.

Of regular rules for the playing of ball games, little trace remains, if there were any such.