Too much dust (in house)

too much dust

Dust is considered an environmental contaminant. Dust particles range in size from 1 µm up to about 500 µm. Approximately 60% of dust particles come from the outside homes through vents, windows, doors and contaminated clothing and other items brought home. ...  read more

Too much noise (acoustic)

too much noise

Acoustic Noise is a type of sound that under specific circumstances is classified as an unwanted sound (or noise pollution). The same sound produced under different circumstances, may become a desired type of sound and will no longer be classified as noise pollution. ...  read more