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2002, 11 (suppl 1): i73-i80

The tweed-like cover (which also acts as a prefilter) is washable and, when the time comes, replaceable

Moreover, these models assume that changes in cancer trends occur in a smooth, continuous manner, potentially overlooking abrupt shifts caused by external factors such as policy changes, environmental influences, or medical advancements

Air quality monitors are expensive, and they may be overkill when a reliable reading of the outdoor AQI can inform any steps you might want to take to improve the indoor air

Discarded filters take years to decompose, add to plastic pollution, damage human and animal health and the environment