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10 Cards in this Set
- Front
- Back
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How are filters tested for efficiency? |
Dust spots test, dust weight arrestance test, and fractional efficiency test |
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Electronic air cleaners are made of which of the following? |
Ionizing wires, pre filter, collector plate |
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What will happen to the skin when air moves over it? |
You will feel colder than you actually are |
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When there is no air movement in a large room the air will _____ and cause the ______ |
Stratify And cause the air to become stagnant and stale |
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Exposure to indoor air pollutants is _____times greater |
100 |
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How many millimetres is in: A) 1 micron B) 1000 microns |
A) .001mm B) 1mm |
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How do you increase the filters efficiency? |
Slow down the air speed |
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What is wind chill effect? |
Air flowing across your skin making you colder then you actually are |
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Bends, branches, junction and sudden changes in direction will cause noise level increases of approximately ___ to ___dB when air speed is doubled |
15 to 20dB |
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What are the 3 categories of indoor air pollutants and explain each |
- particulate: dust, dirt, smoke. 0.3-100 microns. Ultra fine particles -bio aerosols: mold, dust mites, bacteria -volatile organic compounds (VOC): man made such as carpets, cleaning products, formaldehyde |
