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First-aid-gauze prefilter
| You can extend the time between air-filter clearnings by putting first-aid gauze around the prefilter. It’s available in several widths and lengths, but the 2 1/4-inch wide roll works best. Wrap the gauze around the air filter a few times and tuck the end under the air-filter end cap. When it gets dirty, tear it off, and replace it with a few layers of clean gauze. |
You can extend the time between air-filter clearnings by putting first-aid gauze around the prefilter. It's available in several widths and lengths, but the 2 1/4-inch wide roll works best. Wrap the gauze around the air filter a few times and tuck the end under the air-filter end cap. When it gets dirty, tear it off, and replace it with a few layers of clean gauze.
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